When you're writing in script, there are four letters of the alphabet that you can't complete in one stroke.

当你用连写体书写时，字母表里有4个字母你不能一笔写完。

《柯林斯英汉双解大词典》

Because of the randomicity of handwritten characters, handwritten stroke or Chinese characters are depended on user, time, writing condition, equipment and circumstance.

由于手写的随机性，手写的笔画或汉字因人而异、冈时而异、因书写条件、设备和环境而异。

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Large Seal Script to a large extent, the late Western Zhou Dynasty to retain the style of writing, only a slight change in stroke is more neat symmetry only.

大篆在相当大的程度上保留西周后期文字的风格，只是略有改变，笔画更加工整匀称而已。

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Osofsky-McGonigle had aphasia, a common outcome of stroke in which parts of the brain related to language, including reading, writing and talking, are damaged.

CNN: Stroke recovery: One woman's story