New Words：

swap [swɒp] 交换
swapped [swɒpt] swap的过去分词和过去式
swap sth for sth 用…替换；把…换成；掉换
swap sth with sb 跟sb交换sth

Sample Sentences:

Can we swap places? I can't see the screen.
I'll swap these two bottles for that one.
I swapped my red scarf for her blue one.
He swapped his old car for a new motorcycle.
We swapped seats with the people next to us.
Your book looks more interesting than mine . Do you want to swap with me ?

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