Don't get so uptight.

别太当真嘛。

Don't get so worked up.

放松点儿。

Don't be so stiff.

别这么较真儿。

Loosen up.

放松点。

I didn't mean to hurt you./ I meant no harm.

我没有故意伤害你的意思。

Can't we talk it over?

我们就不能好好谈谈吗?

Let's work it out.

我们好好解决这件事吧!

Let’s try to get along.

我们试着好好相处吧。

Let’s be nice to each other.

我们还是以礼相待吧。

Let's forgive and forget!

过去的事就让它过去吧。

Let by gones be bygones.

过去的就让它过去吧。

Can't we patch things up?

我们就不能和好吗?

Isn't there any way we can patch things up?

就没有什么办法让我们和好吗?