效劳 (xiào láo) | Meaning: to serve (in some capacity)

effectiveness · positive effect · to serve (in some capacity)效力xiào lì

to exert oneself出力chū lì

render service to repay kindness报效bào xiào

to work tirelessly; to give one's all; to slave away · to throw away one's life; to sacrifice oneself (usu. for an unworthy cause)卖命mài mìng

to vow loyalty and devotion to效忠xiào zhōng

to display utter loyalty · to be loyal to the end尽忠jìn zhōng

to serve (in some capacity) · to work for