1. 用作动词，表示“买”，可带双宾语；若双宾易位，通常要用介词 for。如：
我叔叔为我买了本英语词典。
正：My uncle bought me an English dictionary.
正：My uncle bought an English dictionary for me.
2. 表示向某人买某物，通常用介词 from。如：
He bought this watch from a friend. 他从一位朋友那儿买了这块手表。
3. 表示用多少钱买某物，通常用介词 for。如：
I bought the computer for $600. 我花600美元买了这台电脑。
He bought it for very little money. 他买它只花了一点点钱。
注：有时也用介词 at, 侧重指价格。如：
He bought them for [at] 10p each. 他以每个10 便士的价格买下了它们。
单词：buy的近义词、反义词、形近词辨析
buy/ purchase
这两个动词均含“购买”之意。
buy〓普通日常用词，既可指日常随意购物也可指大的购买。
purchase〓正式用词，指大宗购货或购买重要东西。无感情色彩，强调物品的购得
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与单词：buy 相关的例句或者名人名言
He decided to buy a green television because it looked cool.
他决定去买一台绿色的电视机，因为那看起来很酷。
Why do I have to go through these bureaucratic processes just to buy a house?
为什么我要经过那么多官僚程序才能买一套房子啊？
I always buy the latest Apple products.
我总是买苹果的最新产品。
The salesman persuaded us to buy a car.
这个销售员在说服我们俩买辆车。
She will buy me a new English dictionary tomorrow.
她明天要给我买一本新的英文词典。
※The art of giving presents is to give something which others cannot buy for themselves.——Alan Alexander Milne, British humorist送礼的艺术在于送别人不能给自己买的东西。英国幽默作家 米尔恩 A A
※The consumer isn't a moron; she is your wife. You insult her in-telligence if you assume that a mere slogan and a few vapid adjectives will persuade her to buy anything.Davik Ogilvy, American advertisement manager消费者不是傻瓜；她是你的妻子。如果你认为仅凭 句口号，几个干巴巴的形容词就能诱使她掏腰包购买任何东西的话，那么你就亵渎了她的智慧。美国广告经营者 奥格尔维 D
