You must see a doctor, Frederick.

弗雷德里克，你一定得看医生。

《柯林斯英汉双解大词典》

You must see a doctor if you are ill.

如果你生病了，就必须去看医生。

youdao

You must see a doctor!

你一定得去看医生。

youdao

All right. Second question: or maybe a better way of saying this, and the general format you're likely to see here is, a test involving a variable name, which must be initialized outside of the loop, and which interior to the loop gets changed, so that the test is going to change.

好，第二个问题：,换种更好的方式来说吧，你们通常喜欢的,方式是，这个测试涉及到一个变量名字，变量在循环外已经被初始化，然后循环内部会改变这个变量的值，因此测试结果会改变。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is just another reason why you must see a well-trained professional for a proper diagnostic evaluation.

NPR: Excerpt: 'Delivered from Distraction'

You see, America must remain a beacon to all who seek freedom during this period of historic change.

BBC: State of the Union: Obama pledges to reignite economy

C. politics can be absorbing enough on its own, but mix in Hollywood machinations and you could create a must-see movie.

CNN: Oscars 2013: Hollywood gets political