Only humans and chimps, she said, had a system of communication where they deliberately sent a message to another group member.
她说，只有人类和黑猩猩有一个交流系统，会有意向另一个群体成员发送信息。
2
The system to raise the flag was designed and produced by engineers at China Space Sanjiang Group in Hubei Province.
升旗的系统由湖北省中国航天三江集团的工程师设计和生产。
3
Restaurants in Wuhan have begun the N-l system, which means groups of customers are supposed to order one fewer dish than the number of people in the group.