在ServerB(以及集群中所有其他的每一台计算机)上以root身份执行以下操作。

As root on ServerB (and each remaining machine in the cluster) perform the following.

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这份由美国田纳西州立大学所发表的报告研究了169对年龄在35周岁以下的夫妇，他们每六个月便会填写一份调查问卷，这样一直持续了四年的时间。

The study from the University of Tennessee selected 169 married couples aged under 35 and asked them to fill in questionnaires every six months for four years.

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但是，每生产一吨液态煤，就得从70公里以下的含水层中输出六吨半的水，排放到空中的二氧化碳也将超过三吨。

But for each tonne of the liquid, six and a half tonnes of water must be piped from an aquifer more than 70 kilometres away and more than three tonnes of carbon dioxide are released into the air.

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