也许有些老师或者集体认为无所谓，但是你应该事先请求他们的允许。

Some teachers/programs may ignore it, but you should ask permission first.

youdao

也许有些老师或者集体认为无所谓，但是你应该事先请求他们的允许。

Some teachers/programs may ignore it, but you should ask permission first.

youdao