transaction

根据《柯林斯英汉双解大词典 》：

N-COUNT A transaction is a piece of business, for example, an act of buying or selling something. 交易 [商业] [正式]^[1]

transaction cost 交易成本，交易费用

transaction processing [计]事务处理

business transaction 商业交易；[经]经济业务

transaction volume 交易量

market transaction 市场交易^[1]

The transaction is completed by payment of the fee.

交易在支付费用之后就完成了。

Neither side would disclose details of the transaction.

双方都不会透露交易的细节。

The new device can also cancel the cheque after the transaction is complete.

这种新设备还能在交易结束后将支票注销。^[1]