buy up 买断，买光，收购

前面我们已经介绍了几个有关buy的短语，他们分别是：buy out 收购，buy off 贿赂，买通，这里我们在学习一个有关buy的短语,buy up,买断，买空，买完的意思，同时buy up也有收购(公司)的意思。
buy up的英文解释是：Buy all of something
例如：
The USA seems to be buying up all of the world’s oil reserves. They are wise as soon there will be little oil left!
美国似乎正在买空全世界的所有石油资源，这倒是很聪明，因为用不了多久，世界上将会没有石油了。
下面是有关buy up这个英语短语的例句：
1.
We BOUGHT UP all the shop had before the price went up.
在价格上涨之前我们买光了商店里所有东西。

2.
Haier looks to buy up and expand in U.S.
海尔正寻找收购对象以在美国扩张。

3.
He bought up all the spare building land in the district and can now charge what he wants for it.
他买断了这个地区的所有闲置建筑土地，现在可以漫天要价了。

4.
Speculators are thick on the ground. They buy up land, sit on it for a month or two and resell for twice what they paid.
这里的投机者非常多，他们买下土地，搁置一两个月以后再以双倍的价格卖出。

5.
A Newyork business man have buy up the entire company.
一个纽约的商人收购了整个公司。

本文部分参考了ESL english