activity and communication的用法和样例：
- We had a discussion on language and communication.
- Our universities shoulder the responsibility of nurturing our future leaders. University students should be encouraged to pursue extra-curricular activities and develop interpersonal and communication skills.
- Until now there are contradictorily results regarding the dominant SOC stabilization mechanisms, possibly depending on factors, such as ecosystem and soil type, soil depth, soil managements, as well as soil biological activity and community composition.
- He was very active and rode down several horses.
- Good teamwork spirit and communication skills.