If your original request is denied, don't be afraid to pursue the matter.

如果你最初的要求被拒绝了，不要害怕去追问这件事情。

《柯林斯英汉双解大词典》

Don't be afraid to make mistakes.

不要害怕犯错误。

youdao

Do not be afraid to say you do not understand.

不要害怕说你不懂。

youdao

(Speaking in French) But Besson said immigration is also a key element of the debate and French should not be afraid to discuss it.

VOA: standard.2009.12.30

Don't be afraid to spend money on it.

所以不要吝啬在这方面花钱。

准备LSAT的时候 - SpeakingMax英语口语达人

And eventually,we'll turn to some other value questions about if death really is the end, should we be afraid of death?

最终，我们会转向其他的关于价值的问题，比如如果死亡真的是终结，我们应该害怕吗？

耶鲁公开课 - 死亡课程节选

With dark walls, you can use pattern underfoot, which you might normally be afraid to do.

WSJ: Why Dark Rooms Are a Bright Design Idea | Living Well by Rita Konig

"Don't be afraid to step out and do what you want to do, " he said.

CNN: First NBA player with MS takes the court

As you get going, never be afraid to share your ideas with others to get feedback.

FORBES: Ideas are a Dime a Dozen. People Who Implement Them are Priceless