Physical education, and class activities should be prepared before, the movement should pay attention to don't a violent collision, so as not to hurt or hurt.
上体育课和课处活动前要作好准备活动，运动时要注意不要剧烈地碰撞，以免撞伤或摔伤。
I expect that all of the students will read the report and paper before class and that they will be prepared to ask insightful questions during the presentations.
老师希望所有的学生课前均能阅读同学的报告与指定的论文，以及准备好在同学简报时提出有见地的问题。
Read, and THINK ABOUT the assigned material before class, and be prepared to discuss the materials or answer questions.
课前阅读并思考指定的材料，准备好讨论的资料或者回答问题。
Read, and THINK ABOUT the assigned material before class, and be prepared to discuss the materials or answer questions.
课前阅读并思考指定的材料，准备好讨论的资料或者回答问题。
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