致力于 zhìlìyú HSK7 to devote oneself to Origin Definitions Defs Strokes Stroke Words Sentences Sents 致力 zhìlì to devote oneself to work hard for a cause; to focus one's efforts and energy on a particular task or goal于 於 yú preposition to Indicates the recipient or target of an action; equivalent to 对 duì or 向 xiàng