If you remember these magnets.

如果你还记得这些磁铁。

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What this means is that, if you remember these magnets.

这就是说，如果你还记得这些磁铁。

youdao

You swim there without danger if you remember these instructions:1.

你在那里游泳没有危险，假如你还记得这些说明：1。

youdao

And, if you ever get confused, the way to remember these is that you know energy is the integral of a force moving through a distance.

如果你感到很困惑的话，可以这么来记,能量是在沿力的方向进行路径积分。

麻省理工公开课 - 固态化学导论课程节选

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