The government must be seen to be whiter than white.

政府必须让自己看上去洁。

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

我们必须确保我们的防御没有漏洞。

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

汤姆在洗碗——我肯定看花眼了！

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

"我们既要看到事物的面,也要看到事物的反面。"

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.

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