must-see

The government must be seen to be whiter than white.

政府须让自己看上去公正廉洁。

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

须确保的防御没有漏洞。

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

汤姆在洗碗——肯定是看花眼了！

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

"既看到事物的正,看到事物的反。"

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