购货人的英文：
n. purchaser

purchase freedom with Blood
以血的代价赢得自由

This orchard became ours by purchase.
这个果树园被我们买下了。

such as stores requisition, purchase requisition,
像库存调拨单，购物申请单，

He purchased this stamp at an auction.
他在拍卖会中购得这枚邮票。

Their purchase is purely a paper transaction.
他们的购买完全是纸上交易。