n.U形(订书)钉；主要产物(要素)；原料(地)
adj.主要的；重要的
vt.用订书机装订
He used a pair of scissors to take the staple out of the document. 他用剪刀将订书钉从文件上取了出来。
Coffee is the staple of this district. 咖啡是这个地区的主要产品。
For example, rice is a staple crop in much of Asia. 例如，在亚洲大米是原料农作物。
用作形容词 (adj.)Short stories are her staple reading. 短篇小说是她经常看的读物。
Rice is the staple diet in many Asian countries. 稻米是亚洲许多国家的主食.
Jeans are a staple part of everyone's wardrobe. 在每个人的衣橱里，牛仔裤是必不可少的。
用作及物动词 (vt.)n.钉书机
