let alone

IMPOSSIBLEused after a negative statement to say that the next thing you mention is even more unlikely 更不用说，更谈不上〔用于否定句之后〕

The baby can’t even sit up yet, let alone walk!

这个宝宝连坐都不会，更不用说走了！

Examples from the Corpus

let alone• Hardly an inspirational notion, let alone a formula for improved customer relations.• It's unwise to let policy be influenced, let alone jeopardized, by outraged personal pride.• If your income drops or ends, how will you pay them off, let alone keep up with the accumulating interest?• I doubt he would have given one of his grandparents a point that morning, let alone me.• I wouldn't work with my mom, let alone my whole family.• Many thousands of children had never even seen, let alone owned a pair of shoes.• It's disappointing that Butman doesn't ask these questions, let alone provide answers.• Keeper Judge never touched him let alone trip him.• But these images were not arbitrary, let alone trivial.

→ let alone at let1(5)

let aloneChinese

let alone

Not likely to happen: unlikely, doubtful, remote...