UNIT 3 Clothes We Wear 我们穿的衣服 Lesson 21 Pyjamas 睡衣 1.What is it?这是什么? pyjamas 睡衣 slippers 拖鞋 housecoat 家常服 2.Too big,too small,just right太大,太小,正好 This housecoat is too big!这件家常服太大了! Th...