cotton是不可数名词。

When he returned he was stuffed withcotton.他回来的时候,身上塞满了。There are angels in printedcottonsmocks .有许多穿着印花布罩衣的天使。You should n't wrap your children incottonwool .你不该对孩子娇生惯养。The innermost region ofcottonis called lumen .棉纤维的最内层组织叫中腔。This is low-lying land and not suitable forcotton.这地太洼，不适于种棉花。Cottonwas picked and weighed up .棉花已摘下来，并已称重。Japan imports rowcottonand exports cotton goods .日本进口原棉，出口棉织品。Cottonis naturally self-pollinated .棉花本是自花授粉的。