毛裤的英文：
woollen underpants

woollen是什么意思：
adj. 毛纺的；羊毛的；毛料的，毛纺织业的

Will this soap shrink woollen clothes?
这种肥皂会使毛织衣物收缩吗？

I have a woollen cape.
我有一条羊毛披肩。

The children were arrayed in pretty woollen sweaters.
孩子们穿着漂亮的羊毛衫。

A man was lying in the box on top of a pile of woollen goods.
箱子里有个人正躺在一堆毛织品上。

She had worn white frocks in summer and woollen stockings in winter.
夏天她身穿白色上衣，冬天穿毛线长袜。

underpants是什么意思：
n. 衬裤；内裤；裤叉

briefs; (men) underpants; (Br.) (women) knickers
内裤

I like brief underpants that reach to the hips rather than to the waist.
我喜欢到臀部但不到腰部的短内裤。

If you think it all hinged on the pilot wearing his lucky underpants, you’re superstitious.
如果你认为它完全取决于航天员穿着了幸运内裤，你就是迷信思维。

Take down one's skirt, trousers, underpants, etc.
把裙子、长裤、内裤等褪到腰部以下。

The Old Lady of Threadneedle Street is perhaps too prim to inspect men’s underpants.
“穿线街老太太” 或许过于呆板，并没有关注男人的内裤。