staple cotton

例句：

1. 1.The farmer used to make his own staple cotton for the clothes he made.
   这位农民过去会自己制作衣服所需的棉絮。
2. 2.She carefully selected the best quality staple cotton for her quilts.
   她仔细挑选了最好的质量的棉絮来制作她的被子。
3. 3.The staple cotton industry is a major contributor to the economy of many countries.
   棉纺织业是许多国家经济的主要贡献者。