Man-made diamonds are nothing new--industry started making them in the 1950s, and each year about 80 tons of low-quality synthetic diamonds are used in tools like drill bits and sanders.
人造钻石并不是什么新生事物，二十世纪五十年代工业上就开始制造了，每年大约生产八百吨低质量的人造钻石，用来制造工具如钻头和打磨机。
There is no plausible instinct, for example, that could impel a man to leave home, cut his hair short, and drill for hours in tight formation.
但在这些过程中并没有什么看似合理的本性能够驱使人们去做那些特定的事情，比如说离开家乡，剪短头发，然后时时刻刻都在密集的队形里操练着。
The captain piped the man down after boat drill .
航行训练后船长吹哨子解散了水手们。
The foolish man will only be one-sided, isolation, so just saw a bird drill a mesh surface phenomenon, but do not understand all the mesh together cooperate with each other to the essence of birds.
这个愚蠢的人只会片面、孤立地看问题，因此只看到了一只鸟钻一个网眼的表面现象，却不懂所有网眼在一起互相配合才能捕鸟的本质规律。
A great man once said it is necessary to drill as much as possible, and the more you apply it in real situations, the more natural it will become.
一位伟人曾说，反复操练是非常必要的，你越多地将所学到的东西运用到实际生活中，他们就变得越越自然。
A great man once said it is necessary to drill as much as possible, and the more you apply it in real situations, the more natural it will become.
一位伟人曾说，反复文明用语练是非常必要的，你越多的将所学到的东西运用到实际生活中，他们就变的越自然。
A great man once said it is necessary to drill as much as possible, and the more you apply it in real situations, the more natural it will become.
一位伟人曾说，尽可能多的操练是非常必要的，你越多地将它用到实际生活中，它就变得越自然。
A great man once said it is necessary to drill as much possible, and the more you apply in real situation, the more natural it will become.
一个伟人曾说，反复操练是非常必要的，你越多地将所学到的知识运用到实际生活中去，它就会变得越自然。
A great man once said it is necessary to drill as much as possible, and the more you apple it in real situations, the more natural it will become.
一位伟人曾说，反复操练是非常必要的，你越多地将所学的东西运用到实际生活中，他们就变得越自然。
A great man once said it is necessary to drill as much as possible, and the more you apple it in real situations, the more natural it will become.
一位伟人曾说，反复操练是非常必要的，你越多地将所学的东西运用到实际生活中，他们就变得越自然。
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