1) He worked at his biology.
他致力于生物学。
2) He's devoted to music.
他致力于音乐。
3) Attended to their business.
致力于他们的事务
6) Be devoted to; sincere;serious about
致力于..
补充资料：致力
尽力；竭力：悉心致力｜致力于思｜致力改革。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条