中学生每个学期都有一大堆繁重的课程负担。
The middle school students have a heavy course load each term .
参加洛基的课程学习，能让你从繁重的英语学习负担中解脱出来。
Taking Rocky courses can free us from the heavy burden of studying English.
第一个学期的学习压力已经够大了，就不要再选修那些繁重的课程来加重自己的负担。
The first semester is stressful enough. Don't make it worse by taking intense course.
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