All spells can be upgraded or you can learn new spells, for that you need power.

所有的法术可以升级，也可以学习新的法术，你需要的电力。

youdao

You only need to press all the power buttons once.

你只需要一次性按下全部电源按钮。

youdao

You have this power. You just need to learn how to exercise it.

你有这种能力，你只需要去学习如何运用它。

youdao

By the way, all the names that I read and that are not on the power points, you don't need to remember or write down.

我所提到名字不会出现在幻灯片上，不必背诵或记录。

哈佛公开课 - 幸福课课程节选

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