'Woollens' means clothes made of wool — sweaters, cardigans, scarves, wool socks, thick underwear — taken together as a group. You almost always meet it in the plural and with a practical, housekeeping flavour: washing them, putting them away, getting them out. That is because wool needs special care, so shops and washing machines have a 'woollens' setting, and people say 'wash your woollens by hand' or 'it's cold enough to get the woollens out'. It sounds slightly older and more British; younger speakers are more likely to say 'wool things' or just name the item. The spelling splits by country: British 'woollens' with two l's, American 'woolens' with one, both said the same way. Don't confuse it with 'woollies', a warmer, more informal word for the same clothes.

毛衣毛料衣物（羊毛製的衣服，尤其是針織的）；洗衣機上的「羊毛（羊毛洗）」行程就是這個