Question

英文问题求解谢谢

这两个说法有道理吗 在knock down 、tear down同时表示 拆除这个意思是 知道的进谢谢
knock down 主要是指个人击打、敲打等拆除
tear down 主要是指借用机械类，如挖掘机等的拆除

Answer 1

不要只是记住字典上的某个意思那样你根本就没有弄清楚给你几个例子，你仔细看看其中区别
knock down
1．knock to the floor or ground击倒；击败
He knocked his opponent down．他击败了对手。
With one blow he knocked his assailant down．他一拳就把袭击他的人打倒在地。
2．strike and cause to fall撞倒
The girl was knocked down by a lorry as she ran across the road．这女孩在跑过马路时被卡车撞倒了。
He was knocked down by a car and was rushed to the hospital．他被汽车撞倒后，随即被送进医院。
3．signify the sale of an article at auction by a blow of the hammer 拍卖时击槌以示卖出
The picture was knocked down to me for ＄ 20 at an auction．这幅画在拍卖中以20美元卖给了我。
The auctioneer knocked the bureau down to a furniture dealer from York．拍卖人把那张写字台卖给约克的一个家俱商。
A mahogany table was knocked down for five pounds．一张桃花心木桌以5英镑的价钱卖出去了。
2、tear down：to pull or knock down a building ，wall ，etc拆毁、拆除（建筑物、墙）
If you tear something down, you destroy it or remove it completely. 拆除; 拆毁
He told Mikhail Gorbachev, Soviet president, to teardown that awful wall.他忠告苏联总统米哈伊尔•戈尔巴乔夫(Mikhail Gorbachev)，要拆掉那堵讨厌的柏林墙。
Love your neighbor, but don't teardown your fence.要爱你的邻居，但也不要拆了自家的围墙。

从上述的英文解释和例句中可知：
tear down强调推到、撞到继而移除，具有破坏性，使物体难以再复原。

Answer 2

knock down 主要是指个人击打、敲打等拆除，为了储藏或运输而拆卸成几部份
tear down 主要是指借用机械类，如挖掘机等的拆除，具有破坏性

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