You're so brave, and you never back down from anything!

你非常勇敢，从来不会退缩！

youdao

We'll never back down on this issue.

在这个问题上我们决不让步。

youdao

I made you and everyone who supported me a promise: to stand up for our Shared values and to never back down.

我向你们每一个支持我的人允诺：代表我们的共同价值而决不后退。

youdao

And then, I'm going to skip down a little bit: Though she never again called back any image of the dead man to dress up, pose, talk to and make answer, neither would she lose a new compassion for the cul-de-sac he'd tried to find a way out of, for the enigma his efforts had created.

接下来，我会跳过一些内容往下说：,虽然她从没有想起过，那个死人穿衣、摆弄姿势、,说话和回答问题时的样子，她也不会失去对他的同情，对他尝试摆脱,无路可走的困境所付出的，谜团一般的努力。

耶鲁公开课 - 1945年后的美国小说课程节选

Ignore pain, leave it on the field and never back down.

CNN: Junior Seau was hurting and didn't know how to say it

We will never back down on this issue.

NPR: Calderon's Swearing-In Marred by Violence

He'd never back down that one.

BBC: South East Wales - Boxing Beats: Fighting Pretty