去年冬天我忙于功课，每天回家都很晚。
Last winter I was very busy with my lessons and came home very late every day.
我总是忙于自己的功课。我每天除了学习还是学习。
I'm always busy with my lessons. What I have to do everyday is nothing but study.
前段时间因为公主忙于复习和考试，上周又忙于新功课，忙于“理事会”，忙于朋友间…公主已经堆了很多衣服需要洗！
Because some days ago I was busy with the review and the test, last week was busy with the new schoolwork, was busy with "the council", was busy with between my friends.
前段时间因为公主忙于复习和考试，上周又忙于新功课，忙于“理事会”，忙于朋友间…公主已经堆了很多衣服需要洗！
Because some days ago I was busy with the review and the test, last week was busy with the new schoolwork, was busy with "the council", was busy with between my friends.
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