Definition
- B2Verb + -ing
to make significant efforts to accomplish a particular goal
努力于…；在…方面投入心力
He decided to work at improving his English skills so he could work abroad.
他决定努力提升英语能力，以便能够在国外工作。
If you want to succeed in this field, you must work at your professional development continuously.
如果你想在这个领域取得成功，你必须持续在专业发展上投入心力。
She worked at painting for many years, and after much practice, her skills finally improved.
她多年来努力练习绘画，经过大量练习后，她的技巧终于有所提升。