更何况

let alone, all the more so

adverb Rare #30,221

let alone, all the more so Introduces a stronger reason or a more difficult case; often used to add emphasis.

CH: 他连自己的名字都写不好，更何况写一封信。

EN: He can barely write his own name, let alone a letter.

宝宝连走都不会，更何况是跑。

The baby can’t even walk, let alone run.

更何况你根本就没有意识到

Besides, you weren’t even aware of it.

— 这个男人来自地球 (2007)

更何况胜负早就已经分出来了

Not to mention, the winner was decided long ago.

— 鬼灭之刃：无限列车篇 (2020)