我一直在努力训练为即将到来的考试做准备。
I has been training hard in preparation for the coming exam.
有一回，我连续22个小时不眠不休，泡在图书馆里埋头苦读，为可怕的有机化学期中考试做准备，一直学到深夜。
One late night, holed up in the library, studying for the dreaded organic chemistry midterm, I went 22 hours without sleep.
有一回，我连续22个小时不眠不休，泡在图书馆里埋头苦读，为可怕的有机化学期中考试做准备，一直学到深夜。
One late night, holed up in the library, studying for the dreaded organic chemistry midterm, I went 22 hours without sleep.
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