她连走路都困难，更不用说跑步了。

She has trouble walking, let alone running.

我们连房租都付不起，更不用说买房子了。

We can't even afford the rent, let alone buy a house.

他连自己都照顾不好，更不用说照顾别人了。

He can't even take care of himself, let alone others.

他连基本的数学都不懂，更不用说高等数学了。

He doesn't even understand basic math, let alone advanced mathematics.

这个问题连专家都难以解决，更不用说普通人了。

This problem is difficult for experts to solve, let alone ordinary people.

没有信任就不可能建立关系，更不用说好的关系了。

You can't have relationships without trust, let alone good ones.

他们没有医疗保健，更不用说娱乐和消遣了。

They have no access to health care, let alone entertainment or recreation.

我们完全忘记了什么是小费，更不用说给多少了。

We had completely forgotten what a tip even was, let alone how much to give.

人们的思维方式仍然过于复杂，难以理解，更不用说复制了。

Just how people think is still far too complex to be understood, let alone reproduced.

他连俄语都会说，更不用说英语了。

He speaks Russian, let alone Russian.