They began the verse, but they never finished it, for another sound broke in and stilled them.
他们开始唱歌，但没能唱完，因为另一个声音打断了他们，使他们沉寂了。
But after a couple of years of effort, it became apparent the project was a gargantuan effort and would never be finished.
但花了几年的努力之后，程序员们发现他们这个项目如此庞大，以至于根本不可能完成。
It can never be finished. But a conscious effort to answer this challenge will change the world.
它不可能被完全完成，但是任何自觉地解决这个问题的尝试，都将会改变这个世界。
Although its architect was forced to resign and it was never properly finished inside, the opera house has come to define not only a city, but also an entire nation and continent.
虽然歌剧院的设计师被迫辞职，虽然歌剧院的内装潢从未圆满竣工，但是这件作品已不仅仅是一座城市的标志，而且也是一个国家和一个洲的象征。
Nobody can explain why the wall was started but there are many theories as to why it was never finished.
没有人能解释为什么开始建造围墙，但对于它为什么从未完工却有许多说法。
Now, this task is open-ended. It can never be finished. But a conscious effort to answer this challenge can change the world.
这是一个没有尽头的任务，永远也不会做完，但只要我们自觉行动起来迎接这个挑战，就可以改变这个世界。
Once the neural network training has finished, it can diagnose not only the shown faults but also some faults never shown in some extent because of its fault tolerance.
由于其具有容错性，训练好神经网络不仅能诊断出已经出现过的故障，还能在一定范围内诊断出从未出现过的故障；
Once the neural network training has finished, it can diagnose not only the shown faults but also some faults never shown in some extent because of its fault tolerance.
由于其具有容错性，训练好神经网络不仅能诊断出已经出现过的故障，还能在一定范围内诊断出从未出现过的故障；
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