a hard cover for holding loose sheets of paper together 活页夹◆a ring binder 活页夹➡ picture at file
() () an agreement that you sign, which, together with a first payment (deposit), gives you the right to buy a property for a limited period of time 临时契约（签约时需支付首期付款（即定金）给予买方，以获得在限定时间内购买房地产的权利）
() () a written or spoken agreement that an insurance company will provide insurance until a permanent document is provided 暂保单（指正式保单签发前，保险公司予以承保的临时的书面或口头协议）➡cover note