work on

US /wɜːrk ɑːn/
UK /wɜːrk ɑːn/
"work on" picture
1.

致力于, 改进

to try to improve or develop something

:
I need to work on my presentation skills.
我需要提高我的演讲技巧。
They are working on a new software update.
他们正在开发一个新的软件更新。
2.

说服, 影响

to try to influence or persuade someone

:
I've been working on him to change his mind.
我一直在说服他改变主意。
She's been working on her parents to let her go to the party.
她一直在说服父母让她去参加派对。