教育界外，其实已经有先例了。

Outside the classroom, digital has already done this.

youdao

其实已经有两天没来了。

In fact did not come for two days.

youdao

你一定是指他们不够照顾粉丝感受，不过其实已经有很多想表现在其中了。

You must be referring to the term fan service and my gawd, there's plenty of it.

youdao

Fast forward mid-semester when we talk about cryptography and scrambling information, we need the ability to express ourselves in words, not just numbers, and we have that already.

回想一下期中的时候，我们讨论过密码学,和一些不规则信息,我们需要话语来表达自己，而不是数字，其实我们已经有了。

哈佛公开课 - 计算机科学课程节选