但需要多次使用的类必须要放到包中。

However, any class that will be used more than once should be in a package.

youdao

需要多次使用的类必须要放到包中。

Every class you use more than once must be in a package.

youdao

实际测试将遵循以前多次使用的相同模型。

The actual testing will follow the same model that has been used many times in the past.

youdao

Okay. Those of you who have your clickers let's pull them out, what I'd like you to do, if anybody doesn't have your clicker yet, please bring it to class. Please get one and bring it to class and we're only going to do one these exercise with the clickers today just as a test, but in subsequent classes we'll be using them quite a lot.

好,带了表决器的人把它拿出来,如果有人还没有表决器,我希望,你能弄一个然后把它带到课上,我们今天只要用表决器做一个测试,但之后的课中我们将多次使用到它

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选