v.购买；采购；换得；依靠机械力移动n.购买；购买行为；购置物；紧握 变形： 过去式：purchased过去分词：purchased现在分词：purchasing第三人称单数：purchases 双语释义：v.(动词)vt. 购买buy英英释义： purchase[ 'pə:tʃəs ]n.the acquisition of something for payment"they closed the purchase with a handshake"something acquired by purc