You need to work on your pronunciation a bit more.

你需要再加把劲改进发音。

《牛津词典》

You need to work slowly when doing outside chores.

做室外杂务需要慢慢来。

youdao

I need to work on my swing.

我需要改进我的挥杆动作。

《牛津词典》

As the students learn, they think about the kind of medical skills they will need to work as doctors.

VOA: special.2009.06.02

So I went back to Engineering and told them, "OK, guys, we need to work harder. And I'm not under CEO.

于是我跟工程师团队说到，大家还要加把劲。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

she's like,"Oh, I go to school because my parents need to work,

我去学校是因为我的爸妈需要去上班，

记忆深刻的研究 - SpeakingMax英语口语达人

And that is an area that -- that skill we still need to work on.

WHITEHOUSE: Press Briefing

If you need to work, you took whatever work you could get at the then-prevailing wage.

FORBES: The Federal Reserve Is A Joke That You Must Take Seriously

Most importantly elected officials will need to work together, to coordinate and collaborate, and even compromise.

FORBES: Post-Election: Now What?