Don't push the envelope.

不要挑战极限。

youdao

Test pilots try to push the envelope.

试飞员尝试挑战极限。

youdao

I push the envelope to do something no one has ever done before.

我想挑战极限做一些从来没有人做过的事情。

youdao

I push the envelope to do something no one has ever done before.

我想挑战极限做一些从来没有人做过的事情。

youdao