< 1 >

没关系/甭客气

It's all right.

Never mind.

Don't worry about that.

It doesn't matter (at all).

It's no big deal.(可简略成no biggie)

Cool!(酷!没事儿!)

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< 2 >

别担心了/不必道歉/不是你的错

Forget it.

　It's not your fault.这不是你的错　

There's no need to apologize.

没必要道歉！

It's really not necessary.

please don't blame yourself.(别自责)

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< 3 >

这有啥，谁都可能遇到酱紫的事

We all make mistakes.

It's OK. It could have happened to anyone.

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< 4 >

事情比较大，你接受道歉

但也要告诫对方：

You're forgiven.我原谅你。

Apology accepted.

你的道歉我接受了。

You should be, but I forgive you.

你就应该这么道歉，不过我原谅你。

语气再重一点的说法有：

Next time you do it, you will be sorry.

下不为例

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< 5 >

事情很严重，无法原谅对方

I accept your apology but I just cannot let it go.

我接受你的道歉，但我不会就这么算了。

I know you might mean it but it's too late.

我知道你要说什么，但是已经太晚了。

I don’t accept your apology.

我不接受你的道歉。