如果你想使用这项‘免费’的服务，你必须已经年满18周岁。

You must be at least 18 years old to use this FREE service.

youdao

答案是，当然，你必须已经死了如果你死亡，并且如果你已经死了你就不存在了。

The answer is, of course, you have to have died if you died and you haven't survived if you've died.

youdao

要求人们对信息质量负责有一个前提条件，你必须已经提供了相应的程序、方法和培训以便人们能够真正达到客户对质量的期望。

You must have provided the processes, methods, and training so people can actually accomplish the quality expectations of their customers.

youdao

And now here comes Eboo Patel telling me you don't have to add this to the already busy things I have to do.

现在Eboo，Patel又告诉我,你不必将此添加到,我必须做的已经很繁忙的事务中了。

普林斯顿公开课 - 人性课程节选