Buy和purchase都有"购买"的意思.当动词用的时候用哪个都可以.不过purchase还常常当名词用.名词的意思就是"所买之物".Buy虽然也可以当名词用,一般把名词buy用在形容"买的真好/真便宜."比如,It's a great buy!
purchase
vt.
1. 买,购买
He purchased this stamp at an auction.
他在拍卖会中购得这枚邮票。
2. 赢得,获得,努力取得
We treasure this dearly purchased victory.
我们珍惜这次以惨重的代价换来的胜利。
3. 用起重装置举起(或移动)
n.
1. 买,购买[U][C]
He worked all summer to save money for the purchase of a piano.
他工作了一整个夏天,为的是存钱买架钢琴。
2. 所购之物[C]
He filled the car with his purchases.
他把买的东西装满车子。
3. 紧抓,紧系
He got a purchase on a branch until we came to his rescue.
他紧紧抓住一根树枝直到我们把他救下来。
4. (地产的)年租,年收益
5. 起重装置
buy
vt.
1. 买,购买[O1][O8]
Mother bought me a pair of jeans.
母亲给我买了一条牛仔裤。
I bought my house cheap.
我这房子买得便宜。
2. 【俚】接受;同意;相信
If you say it's true, I'll buy it.
如果你说是真的,我就接受下来。
3. (以一定代价)获得
We won't buy peace with our freedom.
我们不会用自由换取和平。
4. (用贿赂等)收买
vi.
1. 买
They usually buy with credit cards.
他们通常用信用卡购物。
n.[S]
1. 购买
2. (可)买得的东西;便宜货
It's a good buy.
买得真便宜。
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