You are not required to do impossible things.

不会要求你去做不可能做的事情的。

youdao

You are not required to make any changes to the generated code.

您不需要对所生成的代码进行任何更改。

youdao

Note that you are not required to have the exact filesystem layout.

注意，不要求您具有完全相同的文件系统布局。

youdao

I want to just go over the requirements of the course that really are required, not the optional piece, just so that you understand what my purpose is pedagogically.

我只想跟大家回顾一下,这门课程的必须要求，并非可以自由选择的,这样你们会理解我的目的何在。

耶鲁公开课 - 1945年后的美国小说课程节选

These are completely optional, not required for the course, so there's no obligation for you guys to get involved in these things, but I'll mention these things as we go along in case anybody would like to get involved in working with professors or graduate students.

这些都是自愿选择的,而不是课程要求,所以并不强制你们都参加,但随着课程的进行,我还会不断提及,便于任何感兴趣的同学,能够与教授或研究生一同参与研究

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If you are not required to file an income tax return, you are still required to file Form 8606.

FORBES: Avoiding Too Much Tax On Your Distributions

As a captain, you are often not required to fiddle your bowlers around, everyone knows when they are bowling and it can be quite formulaic.

BBC: Jonathan Agnew column

And if they give you an answer, are you not required to put it to the test to see if it could actually work?

FORBES: Will Pre-Existing Medical Conditions Spell An End To The American Dream?