I kept telling myself to keep calm.

　　我不斷叮囑自己要保持冷靜。

　　I'm very sorry to keep you waiting.

　　對不起，讓你久等了。

　　Let's keep in touch.

　　咱們保持聯(lián)系。

　　You just have to keep yourself busy and keep going.

　　你只要讓自己忙起來(lái)，就能堅持下去。

　　You can keep your rotten money!

　　你就留著(zhù)你的臭錢(qián)吧！