除非真有必要，否则不要命名空间。

Don't use namespace unless you have to.

youdao

难道你真有必要倒我的胃口吗？

Did you need to spoil it by making me nauseous?

youdao

你真有必要比其他人提早几小时到单位吗？

Do you really have to get in several hours before everyone else?

youdao

Of course, it's contested whether or not there is really any merit in talking about texts that way.

当然也有人质疑,那样去谈论一部作品是否真有必要。

耶鲁公开课 - 文学理论导论课程节选