致力于

betake; devote oneself to; apply oneself to; turn to

1. 他致力于学英语。
   He committed himself to studying English.
2. 该协会致力于推动世界和平事业。
   The society was dedicated to furthering the cause of world peace.
3. 她毕生致力于科学。
   She dedicated her life to science.
4. 他致力于哲学研究。
   He devoted himself in philosophical study.
5. 他现在认真地致力于这项工作了。
   Now he applied himself to the job in earnest.

力的英语翻译：

于的英语翻译：