在英语中，安慰他人时可以使用以下表达：

Pull yourself together.振作起来。

Keep your chin up.别灰心，抬起头。

Don't let it get you down.别为此烦恼。

It will be over very soon.事情很快就会过去的。

Don't be so miserable! Everything will be all right.别这么难过!一切都会好起来的。

Don't worry.别担心。

It's going to be okay.会好起来的。

I'm here for you.我在你身边。

Don't worry too much.不要太担心。

Well done!干得不错!

Come on!别灰心。

I'm really sorry! Never mind.我真的很抱歉。没什么。

Don't worry about it. It's okay. Forget about it. It's nothing.别在意，没关系，忘了它吧，没什么。

What a shame! Bummer!真遗憾!真倒霉!

Better luck next time!下次好运!

使用这些表达时，请确保你的语气和面部表情与你的话语相匹配，以传达出真诚和安慰。