There isn't enough room for us, let alone any guests.

连我们都没有足够的空间，更不用说客人了。

《牛津词典》

Her income was barely enough to maintain one child, let alone three.

她的收入养活一个孩子几乎都不够，更不用说三个了。

《牛津词典》

It is incredible that the 12-year-old managed to even reach the pedals, let alone drive the car.

这个12岁的小孩能够得着踏板都令人难以置信，更不用说开汽车了。

《柯林斯英汉双解大词典》

Those who have been bereaved cannot be expected to forget, let alone forgive.

VOA: standard.2009.08.24

What if you're talking about a group of people that don't have any cows in their vicinity, let alone a sick cow?

万一你遇到一群人,他们附近连头奶牛都没有,更不用说受病毒感染的奶牛

耶鲁公开课 - 生物医学工程探索课程节选

To figure out even what this thing is, let alone how to use it properly. So, you know, I'm sympathetic.

就连认出这是什么东西（都很困难），更别说正确应用它了，所以我很同情这点。

经常犯的失误 - SpeakingMax英语口语达人

The fear they will be unable to support themselves let alone if they have children.

FORBES: Readers Say

Others are skeptical that AI will ever reach human levels of intelligence and cognition, let alone surpass it.

CNN: Is AI a threat to humanity?

Fearing for their jobs, neither engineer would permit us to record them, let alone name them.

NPR: Challenger: Reporting a Disaster's Cold, Hard Facts