let alone
成語所屬單字alone
let alone — 慣用語
1. used to say that one thing is impossible or unlikely, and an even bigger thing i
1.慣用語
釋義
更別說
used to say that one thing is impossible or unlikely, and an even bigger thing is therefore more impossible or unlikely.
例句
We can barely pay rent this month, let alone buy a new sofa.
A toddler cannot read this map, let alone follow it.