collective frequency

例句：

1. 1.In a collective, people work together to achieve a common goal.
   在一个集体中，人们共同努力实现共同目标。
2. 2. The team's collective frequency is high, which means they are working well together.
   团队的集体频率很高，这意味着他们合作得很好。
3. 3.The teacher noticed that the students were having trouble with the collective frequency concept.
   老师注意到学生们在集体频率概念上遇到了困难。