When thinking of > and >>, it's easiest to visualize them as the flow of output data moving from the command on the left to the destination file on the right.
在考虑 > 和 >> 时，认为它们把左边命令的输出数据流移动到右边的目标文件中，这样最容易理解。
If you want to lose weight, visualize yourself feeling the benefits, thinking, 'If I work hard, I will look so good, and feel so good,' he says.
如果你想减肥，就想象一下减肥以后的各好处，对自己说：“我要努力减肥，我的外型会变得很好，这感觉真棒。”
The temptation during meetings or telephone conversations that you are not particularly engaged with is to start thinking about things. You visualize things such as holidays.
开会或者通电话的时候，你可能很难集中精神以至于开小差，比如你开始想象假期的情景。
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