基本上 let alone 不用再句首,只用在句中。连接两个句子,有进 一步比较之意,译为:更不用说 给你几个例句。
There isn't enough room for us, let alone six dogs and a cat. 连我们的地方都不够,更不必说六条狗和一支猫了。 I haven't decided on the menu yet, let alone bought the food. 我还没决定吃什么菜呢,更不必说买好了。 I never thought of it, let alone did I do it. 我想都没有想到它,更谈不上去做了。 He hasn't enough money for food, let alone amusements. 他连温饱都无法解决,就更不用说娱乐了。 The baby can't even walk, let alone run. 这小孩连走路都不会,更不用说跑了。
let alone 后面跟 do 和 doing 的区别 let alone 后面结构主要取决于其前面对比内容结构,即要与其前面 结构保持一致!
例如1.Protecting the air,let alone improving it,is a challenge. 别说要改善空气了,现在就是保护它也很难. 2. The central government has struggled to count this debt,let alone control it. 对此中央政府连贷款金额都无法汇总,更别说对贷款进行调控. 3. Tourists need have no truck with maldivian culture or currency,let alone its politics. 游客们不必与马尔代夫的文化、货币打交道,更别说政治了.
1. 用作名词，表示“较少”“更少”，主要用作宾语；但有时也用作主语或表语。
br如：I want much less please.请不要给我那么多。
2. 用作形容词，作为 little 的比较级，通常与不可数名词连用。
br如：Less oil was produced this year than last.今年产油比去年少。
3. 用作副词，可修饰形容词或副词，表示程度；也可修饰动词，表示次数、程度或数量等。
br如：Which book is less difficult? 哪本书较不困难？
意思：
v. 放出；泄露；出租
He let out a cry of disbelief.
他发出难以置信的叫声。
It was something I'd let out in an unguarded moment.
那是我一不留神说漏了嘴的话。
I was distraught and let out a bellow of tearful rage.
我心烦意乱，发出了一声悲愤的吼叫。
They decided to let out the smaller offices at low rents.
他们决定以低租金把那些较小的办公室租出去。