鞠躬尽瘁

jūgōngjìncuì

鞠躬尽瘁 — jūgōngjìncuì

1. to bend to a task and spare no effort (idiom); striving to the utmost

   他为国家鞠躬尽瘁，一生无怨无悔。 tā wèi guójiā jūgōngjìncuì yīshēng wúyuànwúhuǐ — He devoted himself to the country and spared no effort, living his whole life without regret.