但这必须由你做决定。

But this should be your decision.

youdao

但这必须是不要报酬的，因为任何其它决定都不能带来好处。

But it has to be unrequited, because nothing good can come of any other decision.

youdao

大多数工具支持包到名称空间的映射，但这必须在工具执行的过程中显式地进行设置。

Most of the tools allow a package to namespace mapping, but this must be explicitly set during the execution of the tool.

youdao

Now, we are very gentle in this course with respect to knowing integrals, but this is one you have to know.

这门课对积分,的要求并不高，但这个积分你们必须会算。

麻省理工公开课 - 热力学与动力学课程节选

They might have to be formulated as very small steps, in order to do that, but you could.

他们那被构造出来，这些过程必须很小，这好像很难，但实际上是可以做到的。

麻省理工公开课 - 热力学与动力学课程节选

This means that you would have to pay extra money at the end, but they decided that people have trouble doing that.

这表示你在最后必须支付额外的款项,但他们觉得人们对偿还额外款项会有困难

耶鲁公开课 - 金融市场课程节选