let alone
成語所屬單字alone
let alone — 慣用語
1. Used to emphasize that something is even less likely or possible than the thing
1.慣用語
釋義
更不用說
Used to emphasize that something is even less likely or possible than the thing just mentioned.
例句
He can't afford a bike, let alone a car.
The baby can't walk yet, let alone run.
2. used after a negative statement to add something even more unlikely or extreme t
2.慣用語
釋義
更別說；遑論
used after a negative statement to add something even more unlikely or extreme that is also not true.
例句
Little Sofia cannot reach the kitchen counter, let alone open the high cupboard.
The old radio could not pick up local stations, let alone signals from another country.