must-see

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

汤姆——我肯定是看花眼了！

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

"我们既要看到事的正面,也要看到事的反面。"

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

我们必我们的防御没有漏洞。

The government must be seen to be whiter than white.

政府必让自己看上去公正廉洁。