快下课时教授把所有试卷都收上来，开始在全班面前读每张试卷上的答案。

At the end of the class, the professor took all answer sheets and started reading each answer from each sheet in front of all students.

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我没有回答最后一道试题就交了试卷。快下课时，另外一个同学问教授最后一题是否计分。

I handed over my test paper. Leaving the last question unanswered. Just before the lesson ended, another student inquired if the last question would be marked.

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上午最后一节课，快下课时，天空突然乌云密布，电闪雷鸣，大雨倾盆而下，雨点打在窗玻璃上，发出响亮的滴答声。

Last class in the morning and quickly under the class, the sky suddenly covered with dark clouds, thunder and lightning, heavy rain pouring, rain on the window, a loud ticking.

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上午最后一节课，快下课时，天空突然乌云密布，电闪雷鸣，大雨倾盆而下，雨点打在窗玻璃上，发出响亮的滴答声。

Last class in the morning and quickly under the class, the sky suddenly covered with dark clouds, thunder and lightning, heavy rain pouring, rain on the window, a loud ticking.

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