n. a binding agreement between two or more persons that is enforceable by law
n. (contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make
n. a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid
v. enter into a contractual arrangement
n. 合约, 婚约, 契约
vt. 使皱缩, 使缩短, 感染, 订约, 缔结
vi. 皱缩, 订约, 收缩