must-see

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

汤姆在洗碗——我肯定是看花眼了！

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

"我们既要看到事正面,也要看到事反面。"

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

我们必须确保我们防御没有漏。

The government must be seen to be whiter than white.

必须让自己看上去公正廉洁。