purchase 
英 [ˈpɜːtʃəs]  美 [ˈpɜːrtʃəs] 
v. 购买；赢得

n. 购买；紧握

例句：
We need to know the exact day of purchase. 

我们需要知道确切的购买日期。

the purchase of military supplies 

军用物资的采购

Now could be an opportune time to make a purchase. 

现在应该是下手买的合适时机。

He purchased a ticket and went up on the top deck. 

他买了一张票，然后上到上层车厢。

Most of those shares were purchased from brokers. 

那些股票大多数是从经纪人那里买的。