让你久等了，我必须向你道歉。

I have got to apologize for having kept you waiting.

youdao

我迟到了。我必须向你道歉。

I must apologise for being late.

youdao

没有让你早点知道，我必须向你道歉。

I must apologize for not letting you know earlier.

youdao

我必须向你道歉。我明天会买一本新的给你。

I must apologize. I'll buy you a new one tomorrow.

youdao

我必须向你道歉。

I must apologize.

youdao

我必须向你道歉。

I must apologize.

youdao