I want to buy( ).A a trousers B a pair trousers C a trousers D a pair of trousers选哪个?为什么?

问题描述:

I want to buy( ).A a trousers B a pair trousers C a trousers D a pair of trousers选哪个?为什么?

选择 D , a pair of trousers 一条裤子的正确说法