Computers are very useful and helpful because they can work faster than men and make fewer mistakes.
电脑非常有用，因为它们比人工作得更快，犯得错误更少。
But nobody's perfect so it's impossible not to make a mistake. As great as computers and smartphones are, even they can make mistakes!
但是没有人可以完美无缺，永远不犯错误是不可能的。
But nobody's perfect so it's impossible not to make a mistake. As great as computers and smartphones are, even they can make mistakes!
但是没有人可以完美无缺，永远不犯错误是不可能的。
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