must-see

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

汤姆在洗碗——我肯定是了！

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

"我们既要到事正面,也要到事面。"

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

我们必须确保我们防御没有漏洞。

The government must be seen to be whiter than white.

政府必须让自己上去公正廉洁。