not to mention 更不用说；此外还有
例句：
He has two big houses in this country,not to mention his villa in France.
他在这个国家有两个大房子，更不用说他在法国的别墅了。
We can't afford a car,not to mention the fact that we don't have a garage.
我们买不起汽车，没有车库的事就更不用说了。
A:I really need your help.
我真的需要你的帮忙。
B:Go straight.
直说吧。
A:I got dumped by Mary, and I know that you are one of her best friends, so..
我被玛丽甩了，我知道你是她最好的朋友之一，所以……
B:Sorry, I'm busy now, I haven't finished my paper yet, not to mention your stupid thing.
对不起，我现在很忙，我论文还没写完，更不用说你那些愚蠢的事情。
背景音乐：
Usher — papers
