套购的英文：
illegally buy up

参考例句：

Illegally buy up goods for which there is a state monopoly of purchase and marketing
套购统购统销物资

Hedge [securities market]: Security acquired to cover possible loss on speculative investments.
套期保值，套购保值[证券市场]:为避免投机性投资可能造成的损失而购买的证券。

illegally是什么意思：
adv. 非法地

They are illegal immigrants.
他们是非法移民。

Illegal immigrants or workers are sometimes referred to as illegals.
非法移居的移民或工人有时也被称为非法移民。

It is illegal to drink underage in America.
在美国，未到年龄喝酒是违法的。

It is illegal to tap a telephone wire.
窃听电话是非法的。

Selling the fell is illegal.
销售兽皮是违法的。

buy是什么意思：
n. 所购的物品；便宜货；买卖
v. 买；获得；购得；收买；相信

Buying bonds is safer than buying stocks.
买债券比买股票风险小。

It's a good buy at that price.
这是一笔价钱合算的买卖。

That shirt was a really great buy.
这个衬衫真是便宜货。

It's a good buy at that price.
这是一笔价钱合算的买卖。

That shirt was a really great buy.
这个衬衫真是便宜货。