略过剧情
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。
双鱼0303
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)
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