时间是有限的，溜走的时候什么都不留下。就算一秒钟也很重要。我们应该充分的利用时间来做一些有价值的事情。
It goes without saying that the time usually limited. Even a second is important. We should make full use of our time to do something valuable.
时间是有限的，溜走的时候什么都不留下。就算一秒钟也很重要。我们应该充分的利用时间来做一些有价值的事情。
It goes without saying that the time usually limited. Even a second is important. We should make full use of our time to do something valuable.
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