贪吃的猫猫410
let alone 才是最地道的说法(Not to mention; much less:)更不用提；更别说：“Their ancestors had been dirt poor and never saw royalty, let alone hung around with them”(Garrison Keillor)“他们的祖先穷得要命，从来没有见过王族成员，更不用说和他们在一起了”(加里森·谢勒)
huangxinru7
……， to say nothing of …… 结构∶主词+否定式动词…;+to say nothing of+名词(子句) 说明∶此句型意为“更不用说;更不待言”。to say nothing of 可用 not to speak of，not to mention等代替。 He does not know English， to say nothing of German or French. 他不懂英文，更不要说德文和法文了。
盛开的七月
let alone更不用说He hasn't enough money for food, let alone amusements. 他连吃饭钱都不够，就更不用说玩儿的钱了。
