• You can put your hands through a hole in a clear, plastic box and hold the huge piece of gold.

    VOA: special.2010.03.22

  • So you can imagine, we actually don't need to think of it as a piece of gold foil it might be easier to think of it as a couple of layers of atoms.

    所以可以想象,我们不用把它当成一片金箔,只要把它当成是几层原子,所以他所作的就是。

    麻省理工公开课 - 化学原理课程节选

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