芮：在中国英语学习群体中，这是个备受瞩目的比赛。
Rui: The competition was very high-profile among China's English learning community.
一个混合的学生群体可以改变课堂的活力，有利于学生学习。
A mixed student body may change the classroom dynamics and benefit learning.
一个群体间互相学习叫做文化传播。
Group members teaching each other is called cultural transmission.
一个群体间互相学习叫做文化传播。
Group members teaching each other is called cultural transmission.
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