The fever must run its course.

这种热病要经过一定过程才会好。

The leader must allow the curiosity to run its course.

领导人必须允许好奇心的存在。

He promised to allow justice to run its course unimpeded.

他承诺要让司法正义不受阻碍地得到伸张。

At first he decided to let the mild illness run its course.

开始他决定让这个小病听其自然。

We'll find some more models, everything must run its course.

这样我们就去找更多的靓女，一切都是命中注定会这样。