"In school, I think it means exchanging cards and getting a candy, or multiple candies."

VOA: special.2010.02.08

So, these are all involved with our ability to maintain homeostasis by exchanging materials with the external environment.

这个过程关乎人体维持内稳态的能力,内稳态通过与外环境进行物质交换来实现

耶鲁公开课 - 生物医学工程探索课程节选

These two systems which are shown in the core of this diagram really are responsible for regulating and exchanging information between the other organ systems.

在这张图的中心画的就是这两个系统,它们的功能是调节其他系统,并与之交换信息

耶鲁公开课 - 生物医学工程探索课程节选

They began exchanging their money for gold.

VOA: special.2010.06.24

So on the one hand, the communal activity of teaching and exchanging ideas and the liveliness that comes about, particularly in seminars and some one-on-one conversations with the students and reading their writing.

因此，一方面，教学，交流的相互性,还有随之而来的生动性，尤其是在研讨会和一些一对一的,与学生的交流中，以及他们的作业中。

普林斯顿公开课 - 人性课程节选

The Christmas season is usually a festive time, as families and friends gather to celebrate the holidays, sharing delicious meals and exchanging gifts.

VOA: standard.2009.12.24

In an affidavit,U.S.officials said Gwendolyn Myers described her contacts with Cuban agents, such as passing secrets by exchanging shopping carts at the supermarket.

VOA: standard.2009.06.06

"I do not think that exchanging Russia for Turkmenistan or Ukraine for Turkey, if it was the only step, would be that very smart,"

VOA: standard.2009.05.11