must-see

We must see the reverse as well as the obverse side of things.

"我既要看到事物的面,也要看到事物的反面。"

We must see that there is no gap in our defence.

我确保我的防御没有漏。

The government must be seen to be whiter than white.

政府让自己看上去洁。

(humorous) Tom’s washing the dishes—I must be seeing things!

汤姆在洗碗——我肯定是看花眼了！

This means that the way in which denture teeth occlude must be seen dynamically, and not just as a static relationship when in maximum interdigitation.

这意味着，义齿咬合的方式作为一个动态过程，而不仅仅是最大牙尖交错牙合时的静态关系。