HowStuffWorks发起人马歇尔·布莱恩通过对比，讲解了为什么当人类岗位被机器人替代时会有五千万人失去工作。
HowStuffWorks founder Marshall Brain, by contrast, explained why 50 million people will lose their jobs when they can be replaced by robots.
详细讲解复合风管的优越性能、制作工艺及风管的安装，并以工程实例分析替代方案的经济可行性。
Also particularly explains the superior characteristics, fabrication process and installation of the compound air duct, in addition, analyzes the economic feasibility of the substitute project.
阿加·西兹教授的教学方法是用看替代讲解，只是让他看了再看。
The Professor Agassiz 's teaching method was looking instead of lecturing, he let his young student "look again, look again".
阿加·西兹教授的教学方法是用看替代讲解，只是让他看了再看。
The Professor Agassiz 's teaching method was looking instead of lecturing, he let his young student "look again, look again".
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