let alone中等

Just how people think is still far too complex to be understood, let alone reproduced, says David Eagleman, a Stanford University neuroscientist.

斯坦福大学神经科学家戴维·伊格尔曼说，人类究竟如何思考仍然过于复杂，难以理解，更不用说复制了。

(47) By all accounts he was a freethinking person, and a courageous one, and I find courage an essential quality for the understanding, let alone the performance, of his works.

(47) 人们普遍认为他是一个思想自由、勇气十足的人，而我发现，勇气是理解他的作品所必备的品质，更不用说演奏他的作品了。