n.（某国的）主要产品( staple的名词复数 )；钉书钉；U 形钉；主要部份v.用钉书钉钉住( staple的第三人称单数 )； 双语释义：n.(名词)[C] 钉书钉 a small piece of thin wire with two square corners which is driven into sheets of paper,etc.,and bent over on the other side to hold them togetherv.(动词)vt. 用钉书钉钉住 fasten