====== dùshù: 度数 - Degree, Strength, Prescription ======
===== Quick Summary =====
  * **Keywords:** dushu, dùshu, 度数, Chinese for degree, Chinese for temperature, alcohol percentage in Chinese, eyeglass prescription in Chinese, measure word for strength, HSK 4 vocabulary
  * **Summary:** The Chinese word **度数 (dùshu)** is a versatile noun that translates to "degree" or "strength" in English, but its usage is much broader. It's the go-to term for describing the numerical value of temperature, the measure of an angle, the alcohol content (proof) of a beverage, and the prescription strength of eyeglasses. Understanding **度数 (dùshu)** is key to everyday conversations in China, from discussing the weather to visiting an optician or buying a bottle of liquor.
===== Core Meaning =====
<hanziwriter>度数</hanziwriter>
  * **Pinyin (with tone marks):** dùshù
  * **Part of Speech:** Noun
  * **HSK Level:** 4
  * **Concise Definition:** A numerical measure of degree, magnitude, or strength.
  * **In a Nutshell:** Think of **度数 (dùshu)** as the "number of degrees" for a specific scale. While in English we use different words for "degrees" (temperature), "proof" (alcohol), and "diopters" (glasses), Chinese bundles these concepts into this single, practical word. The context tells you exactly which scale is being measured. It’s a number that quantifies an invisible quality like heat, strength, or visual correction.
===== Character Breakdown =====
  * **度 (dù):** This character fundamentally means "degree," "measure," or "limit." It can be pictured as a hand (又) taking a measurement over a certain extent, perhaps within a structure (广). It’s all about establishing a standard or extent.
  * **数 (shù):** This character means "number" or "to count." It's composed of elements that historically relate to calculation and quantity.
  * When combined, **度数 (dùshù)** literally means "degree number" or "measurement number." This logic perfectly explains its function: it provides the specific numerical value for a particular measurement or degree of something.
===== Cultural Context and Significance =====
The significance of **度数 (dùshu)** lies in its linguistic efficiency and reliance on context, a common feature in the Chinese language.
In the West, we often use highly specialized terms for different measurements. You measure temperature in "degrees Celsius/Fahrenheit," alcohol strength in "percentage by volume (% ABV)" or "proof," and eyeglass strength in "diopters." Each field has its own jargon.
In Chinese, **度数 (dùshu)** serves as a common, everyday term for all of these. A Chinese person can ask:
  * "What's the **度数** of this //baijiu//?" (alcohol)
  * "What's the **度数** of your glasses?" (prescription)
  * "What's the **度数** of this angle?" (geometry)
This demonstrates a cultural tendency towards practicality in everyday language. The specific meaning isn't embedded in a unique word but is immediately clear from the object being discussed (liquor, glasses, a triangle). It places the burden of specificity on the context of the conversation rather than on a large, specialized vocabulary, making it a very high-frequency and useful word to master.
===== Practical Usage in Modern China =====
**度数 (dùshu)** is a neutral term used in a wide range of everyday, informal, and technical situations. Its meaning is almost always clarified by the noun it's associated with.
  * **Eyeglass Prescription:** This is arguably one of its most common uses. When you go to the optician, you'll discuss your **度数**. A higher number means a stronger prescription.
  * **Alcohol Content:** When buying beer, wine, or especially the potent Chinese liquor //白酒 (báijiǔ)//, the **度数** on the bottle indicates its strength. A "high **度数**" (高度数) means it's very strong.
  * **Temperature and Angles:** In scientific, mathematical, or formal contexts, **度数** is used to refer to the number of degrees. However, in casual conversation about the weather or simple geometry, people often shorten it to just **度 (dù)**. For example, saying "今天30度 (jīntiān sānshí dù)" is more common than "今天30度数." Using the full **度数** is not wrong, just a bit more formal or emphatic.
===== Example Sentences =====
  * **Example 1:** 
    * 我觉得我的近视**度数**又加深了。
    * Pinyin: Wǒ juédé wǒ de jìnshì **dùshù** yòu jiāshēn le.
    * English: I feel like my nearsightedness prescription has gotten stronger again.
    * Analysis: A very common real-life sentence. 加深 (jiāshēn), "to deepen," is the standard verb for a prescription getting stronger.
  * **Example 2:** 
    * 这瓶白酒的**度数**太高了，我喝不了。
    * Pinyin: Zhè píng báijiǔ de **dùshù** tài gāo le, wǒ hē bu liǎo.
    * English: The alcohol content of this bottle of baijiu is too high, I can't drink it.
    * Analysis: 高 (gāo - high) and 低 (dī - low) are the typical adjectives used to describe the **度数** of alcohol.
  * **Example 3:** 
    * A: 你的眼镜**度数**是多少？ B: 左眼三百度，右眼三百二十五度。
    * Pinyin: A: Nǐ de yǎnjìng **dùshù** shì duōshǎo? B: Zuǒ yǎn sānbǎi dù, yòu yǎn sānbǎi'èrwǔ dù.
    * English: A: What's your glasses prescription? B: 300 for the left eye, 325 for the right eye.
    * Analysis: Note how the response shortens **度数** to **度**. This is very natural in conversation once the context is established. Chinese prescriptions are often stated in hundreds (e.g., 300 = -3.00 diopters).
  * **Example 4:** 
    * 一个直角的**度数**是九十度。
    * Pinyin: Yī gè zhíjiǎo de **dùshù** shì jiǔshí dù.
    * English: The measure of a right angle is 90 degrees.
    * Analysis: This is a textbook example from a geometry context. Again, notice the common pattern of using the full **度数** in the formal statement and the shorter **度** with the specific number.
  * **Example 5:** 
    * 医生，我需要配一副新眼镜，请帮我检查一下**度数**。
    * Pinyin: Yīshēng, wǒ xūyào pèi yī fù xīn yǎnjìng, qǐng bāng wǒ jiǎnchá yīxià **dùshù**.
    * English: Doctor, I need to get a new pair of glasses, please help me check my prescription.
    * Analysis: Demonstrates how to use the word in a practical setting like an optometrist's office.
  * **Example 6:** 
    * 啤酒的**度数**一般在3到5度之间。
    * Pinyin: Píjiǔ de **dùshù** yībān zài sān dào wǔ dù zhījiān.
    * English: The alcohol content of beer is generally between 3 and 5 percent.
    * Analysis: In the context of alcohol, a **度数** of 5 refers to 5% ABV.
  * **Example 7:** 
    * 虽然今天的温度**度数**不高，但是很潮湿，感觉更热。
    * Pinyin: Suīrán jīntiān de wēndù **dùshù** bù gāo, dànshì hěn cháoshī, gǎnjué gèng rè.
    * English: Although the temperature today isn't high (in degrees), it's very humid, so it feels hotter.
    * Analysis: Here, **度数** is used to specifically refer to the numerical value on the thermometer, distinguishing it from the perceived temperature.
  * **Example 8:** 
    * 他因为**度数**不合适，戴新眼镜会头晕。
    * Pinyin: Tā yīnwèi **dùshù** bù héshì, dài xīn yǎnjìng huì tóuyūn.
    * English: He gets dizzy wearing his new glasses because the prescription isn't right.
    * Analysis: 不合适 (bù héshì) means "unsuitable" or "not fitting," a perfect phrase to use with **度数**.
  * **Example 9:** 
    * 这个温度计的**度数**准确吗？
    * Pinyin: Zhè ge wēndùjì de **dùshù** zhǔnquè ma?
    * English: Are the readings (degrees) on this thermometer accurate?
    * Analysis: Shows **度数** can also mean the "reading" or "markings" on a measurement device.
  * **Example 10:** 
    * 俄罗斯的伏特加**度数**非常有名。
    * Pinyin: Éluósī de fútèjiā **dùshù** fēicháng yǒumíng.
    * English: Russian vodka is very famous for its high alcohol content.
    * Analysis: A good cultural example. The sentence implies a high **度数** without explicitly stating it.
===== Nuances and Common Mistakes =====
  * **度 (dù) vs. 度数 (dùshu):** The most common point of confusion. Think of **度数** as "the number of degrees" and **度** as the "degree" unit itself. When stating a specific number, especially in casual speech, **度** is often sufficient (e.g., 30度). Using **度数** is more formal, more complete, or used when referring to the concept of the prescription/strength itself (e.g., "我的度数很高"). You can't go wrong using **度数**, but using **度** in the right context will make you sound more natural.
  * **False Friend #1: Academic Degree:** Do NOT use **度数** for a university degree. That is **学位 (xuéwèi)**.
    * **Incorrect:** ~~我在美国拿到了一个大学**度数**。~~
    * **Correct:** 我在美国拿到了一个大学**学位**。(Wǒ zài Měiguó nádào le yī gè dàxué **xuéwèi**.) - I got a university degree in the US.
  * **False Friend #2: Abstract "Degree":** Do NOT use **度数** for an abstract level or extent, like "a high degree of difficulty." For that, you must use **程度 (chéngdù)**.
    * **Incorrect:** ~~这个问题的困难**度数**很高。~~
    * **Correct:** 这个问题有很高的困难**程度**。(Zhè ge wèntí yǒu hěn gāo de kùnnán **chéngdù**.) - This problem has a high degree of difficulty.
===== Related Terms and Concepts =====
  * [[温度]] (wēndù) - Temperature. The specific concept measured by **度数** in the context of weather or heat.
  * [[角度]] (jiǎodù) - Angle; point of view. The specific geometric concept measured in **度数**.
  * [[程度]] (chéngdù) - Degree; level; extent. Used for abstract concepts (e.g., degree of satisfaction). A critical term to distinguish from **度数**.
  * [[学位]] (xuéwèi) - Academic degree (e.g., Bachelor's, Master's). A common "false friend" for English speakers.
  * [[眼镜]] (yǎnjìng) - Eyeglasses. The object whose corrective power is measured in **度数**.
  * [[近视]] (jìnshì) - Nearsightedness; myopia. The condition often described by a specific **度数**.
  * [[酒精]] (jiǔjīng) - Alcohol. The substance whose concentration in a beverage is measured by **度数**.
  * [[白酒]] (báijiǔ) - A strong Chinese liquor, famous for its high **度数**.
  * [[测量]] (cèliáng) - To measure. The act of finding out a specific **度数**.