Our group discussion usually lasts for two hours. 我们的小组讨论通常进行两小时。
Dr. Anderson joined the group discussion. 安德信博士参与小组讨论。
The professor asked us to have group discussion. 教授要同学们分组讨论。
Participation in discussion is essential to the life of the class and the force and cogency of students' remarks will have a marked influence on grades. 参与分组讨论是基本的上课方式，并且也是评量同学成绩的标准之一。
