Definition: when you give something to someone and they give you something else Level: B1
我们在讨论期间进行了活跃的思想交流。
We had a lively ___exchange of ideas during the discussion.
志愿者们以服务换取住宿。
The volunteers received accommodation in ___exchange for their services.
研讨会促成了深刻的观点交流。
The workshop facilitated an insightful ___exchange of perspectives.
