永远不要忘记怎样去笑，怎样去哭泣。
我们有越来越少的机会去写字，结果，我们常常忘记怎样去写字了。
We have fewer and fewer opportunities to write, as a result, we always forget how to write the characters.
(第一部分)“的内容呢？”大部分的图像时通过电子显微镜拍摄的，但是我忘记了去解释以及它们是怎样工作的。
Most of the pictures on this post series were taken with electron microscope and I forgot to explain what it is and how it works.
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