详细解释:n. 购买, 购买品, 紧握, 绞辘
vt. 购买, 赢得, 努力取得, 用滑轮起(锚等)
【经】 买, 购买, 采购
词型变化：
名词:purchaser动词过去式:purchased过去分词:purchased现在分词:purchasing第三人称单数:purchases词意辨析：
buy, purchase这两个动词均含“购买”之意。
buy: 普通日常用词，既可指日常随意购物也可指大的购买。
purchase: 正式用词，指大宗购货或购买重要东西。无感 * 彩，强调物品的购得。英语解释：
名词 purchase:
the acquisition of something for paymentsomething acquired by purchasea means of exerting influence or gaining advantagethe mechanical advantage gained by being in a position to use a lever同义词：leverage