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Swap=trade or exchange sth. 交换，更换
例句 I didn't like the color of my jacket.So I went back to the store and swapped it for another one. 我不喜欢这件外套的颜色，于是我返回店里换了另外一件。
My brother and I accidently swapped school bags this morning.So I didn't have my homework for English class.Boy ,did I sure get into trouble. 今早我和我哥哥把书包给拿错了，结果到英语课上我没能交上作业。你说，是不是很麻烦。
