对不起

duì bu qǐ ràng nín děng zhè me jiǔ

对不起，让您等这么久。

I'm sorry to have kept you waiting for so long.

duì bu qǐ gěi nǐ tiān má fan le

对不起，给你添麻烦了。

Sorry to have given you so much trouble.

duì bu qǐ wǒ děi zǒu le

对不起，我得走了。

Excuse me, but I'll have to go now.

nǐ kě bié duì bu qǐ wǒ

你可别对不起我。

Don't ever do any disservice to me.

nǐ yào nǔ lì xué xí bié duì bu qǐ fù mǔ

你要努力学习，别对不起父母。

You should study hard and don't let your parents down.

tā duì bu qǐ nǐ de qī wàng

他对不起你的期望。

He doesn't deserve your expectations.