That may seem like a neat way to determine whether all your data has actually been received by the other side, but in fact it is a bad thing to do.
似乎这是一种判定你的数据是否已经为对方全部收到的简洁的方法，实际上却并非如此。
However, Internet is like a double-edged sword. It has both good side and bad side.
然而，网络却像一把双刃剑，它既有好的方面又有不好的方面。
I think the robot has a good side and a bad side, robot although can help us to do something, but it will make us lazy.
我觉得机器人有好的一面也有坏的一面，机器人虽然可以帮我们做事，可是这会让我们懒惰。
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