When combined, 无私 (wú sī) means “without selfishness” or “selfless.” 奉献 (fèng xiàn) means “to respectfully offer and contribute.” Together, 无私奉献 (wú sī fèng xiàn) literally translates to “to selflessly and respectfully offer and contribute,” capturing the essence of a profound and noble sacrifice.
无私奉献 is a powerful concept deeply embedded in the Chinese cultural psyche. It reflects the strong influence of both Confucianism and socialist ideology, which prioritize the collective over the individual.
This is a formal and highly commendatory term. You won't use it for everyday small favors, but its spirit is widely understood.