岁月不待人。

Time and tide wait for no man. *tide 是“潮水”，此处与time同义，表示时间。

越快越好。

The sooner, the better.

When should I come over? (什么时候来合适?)

The sooner, the better. (越快越好。)

正好。

On the nose.

How many people came to the party? (有多少人来参加晚会?)

A hundred people, on the nose. (正好100人。)

Exactly.

On the dot.

捉迷藏。

Hide-and-seek

Let’s play hide-and-seek. (我们玩捉迷藏吧。)

Okay. (好吧。)