Traditional: 交換
交换 (jiāo huàn) means “to exchange; to swap; to switch (telecom); commutative (math); to commute”. It is an HSK 5 Chinese word (traditional 交換) in the HSK 3.0 vocabulary.
我们交换了联系方式。
Wǒmen jiāohuànle liánxì fāngshì.
We exchanged contact information.
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