Let's just forget it. 我们不要纠结了。

　　Forget it. You don't understand. 算了吧，你不明白。

　　Oh, forget it It's not that important. 哦，算了，不是什么重要的事情。

　　Forget it. I'm not going to tell you now. 算了吧，我现在不会告诉你的。

　　I didn't buy any candy for you. 我可没给你买什么糖果。

　　Forget about it. I'll buy some later. 算了吧，我回头自己买。