exchange的同义词是什么

trade尤指买卖货物，也可表示交换物品。

例句：

The exchange of prisoners took place this morning.

今天早上交换了俘虏。

What is needed is a frank exchange of views.

需要的.是坦诚地交换意见。

We need to promote an open exchange of ideas and information.

我们需要促进思想和信息的公开交流。