名词

1. 订书钉

2. U形钉，U形电线卡

3. 基本食物，主食

4.（某国的）主要产品，支柱产品

5. 主要部分，重要内容

adj.

1. 主要的，重要的

2. 大宗生产的

3. 常用的

4. 纺织纤维的

及物动词：

1. 用订书钉装订

词形变化

时态stapled，stapling，staples

英语解释

a natural fiber (raw cotton, wool, hemp, flax) that can be twisted to form yarn

secure or fasten with a staple or staples

necessary foods or commodities

a short U-shaped wire nail for securing cables

material suitable for manufacture or use or finishing

(usually plural) a necessary commodity for which demand is constant

paper fastener consisting of a short length of U-shaped wire that can fasten papers together