的老师先计划好他的课程，所以每节下课前几分钟，他会利用交接时间前，把下节课需用的东西准备妥当。
The proactive teacher has planned her lessons so that she has a few minutes at the end of each period to get things ready for her next class before passing time.
的老师先计划好他的课程，所以每节下课前几分钟，他会利用交接时间前，把下节课需用的东西准备妥当。
The proactive teacher has planned her lessons so that she has a few minutes at the end of each period to get things ready for her next class before passing time.
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