1. You learn how to interact with other people, and you learn a considerable amount about life in a culture that is not your own.
    你学会了如何和他人交流，而且你还了解了大量与自己不同文化背景的人们的生活情况。

2. Providing the "drugs" for this game, the industry has created new skin therapies which, they say, don't just sit on the surface but actually interact with the cells.
    美容业给这一花招提供"药物",以此创造了新的皮肤疗法，还说这种疗法并不是仅停留在表面，它实际上作用于细胞层。

3. It turns out that a scientist can see the future by watching four-year-olds interact with a piece of candy.
    人们发现，通过观察一个四岁孩子怎样处理一块糖，科学家可以预测其未来。