They swapped books with each other.
他们互相交换了图书.
《简明英汉词典》
Some exchange presents first on Christmas morning.
许多家庭首先在圣诞节早上互相交换礼物.
英语晨读30分（高二）
He now corresponded with them and swamped duplicates.
现在他和那些人互通信件,互相交换复制品.
辞典例句
They are stamp collectors; they often trade stamps with each other.
他们是集邮者; 他们经常互相交换邮票.
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The exchanging of favors or praise, as among artists, critics, or academics.
'相互'.''吹捧艺术家 、 批评家或学术人士之间互相''.'交换'. ''赞同和赞扬意见.
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The Americans and the Japanese conducted a completely secret exchange of messages.
美日双方在完全保密的情况下互相交换了信件.
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Particles transmit forces among each other by exchanging force - carrying particles called bosons.
靠携带力量粒子互相交换而产生的粒子传输力量被称为波色子.
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Communicated with staff of CI ( Chengdu ), discussed about the travel route.
与保护国际成都项目组成员 座谈, 商谈考察行程,互相交换关于社区参与生态旅游的经验.
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Most viruses, including influenza, readily swap genes with one another.
包括流感在内大多数病毒很容易互相交换基因.
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They exchanged glances and she smiled.
他们互相交换了一下眼色,她会意地笑了.
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Mark : would you like exchange photos?
你介意互相交换照片 吗 ?
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Step 7 : Children exchange their zigzag books and read.
孩子们互相交换阅读自己制作的故事书.对其他同学所写的故事书,孩子们会非常感兴趣.
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Before graduation, students exchange presents with each other.