B2 to buy something购买
The land has been purchased by the army.
Members will have the opportunity to purchase additional shares in the company at a big discount.
Tickets can be purchased in advance from the box office.
People wishing to purchase advance tickets should ring our booking line.
Life insurance is obligatory when purchasing a house.
B2 [ C ] something that you buy购买物
B2 [ C or U ] the act of buying something购买，采购
a costly purchase
I've just received a memo from Clark authorizing the purchase of six more computers.
Keep your receipt as proof of purchase.
Take your purchases to the sales clerk, and he will wrap them for you.
Researchers analysed the purchases of 6300 households.
[ S or U ] a firm hold that allows someone or something to be pulled or lifted without sliding or falling紧握；抓住