staple
名词 staple:
(usually plural) a necessary commodity for which demand is constant
同义词:basic
a natural fiber (raw cotton, wool, hemp, flax) that can be twisted to form yarn
同义词:staple fiber, staple fibre
material suitable for manufacture or use or finishing
同义词:raw material
a short U-shaped wire nail for securing cables
paper fastener consisting of a short length of U-shaped wire that can fasten papers together
动词 staple:
secure or fasten with a staple or staples
形容词 staple:
necessary foods or commodities