事实上，最高法院早在50多年前就裁定只有为培训目的而做的工作才可以不付薪酬。

In fact, the Supreme Court ruled more than 50 years ago that only work done for training purposes could go unpaid.

youdao

公共卫生工作只有为数不多的机会能够以永久的方式改善这个世界。

Public health has only a few opportunities to improve this world in permanent ways.

youdao

但是火车的工作人员都可怜我，并没有为难我，只有一次我被抓住以后要求补票。

Only once have I been required to pay for a ticket, after being caught.

youdao