这个神秘的持枪交易人还不是唯一花时间进行过心脏恢复术培训的重罪犯。
This mystery gunman wasn't the only felon who invested time in CPR training.
木制腿在这些修复术中是最有趣的一种，因为它们神秘的起源要比它们的历史更加隐晦。
Wooden legs are perhaps the most interesting of these prosthetics, for their origin in myth is more obscure than their true history.
就像是炼金术一样，为您的应用程序找到最佳的硬件和软件组合是一种神秘的艺术，需要不断实践才能取得最有效的结果。
Like alchemy, finding the right mix of hardware and software ingredients to optimize your specific application is a black art-and one practiced most effectively in your own lair.
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