keep back 隐瞒某事或某种情绪

earn your keep 赚生活费，挣得生计

earn its keep 值得花在某物上的金钱时间

I got the feeling he was keeping something back.

I got the feeling he was keeping something back.

She was struggling to keep back the tears.

她正努力忍着不哭。

how are you keeping?

你好吗？

It’ll keep.

不着急，待会儿再说。

-‘I don’t have time to listen now.’

－“我现在没时间听。”

-‘Don’t worry, it’ll keep.’

－“不着急，待会儿再说。”

Keep your hair/shirt on!

别发脾气，冷静一下。

Even if you just use the card once, it will earn its keep.

就算你只用一次这张卡，它也绝对划得来。