复数：Hats
The peasants doff their hats.
农夫们脱去他们的帽子。
I'm glad hats are coming back.
我很高兴帽子再度流行起来。
We had to wear these silly little hats.
我们不得不戴这些傻里傻气的小帽子。
Hard hats and ear protectors are provided.
提供安全帽和护耳。
I'm wearing two hats tonight—parent and teacher.
我今晚身兼两职—既是家长又是老师。
