通常我们用符号s来表示弧长。

So, the usual notation that we will have is for arc length.

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因为他们只说日语，我们便用符号和手势使我们被他们理解。

Since they spoke only Japanese, we used signs and gestures to make ourselves understood.

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在早期尝试脑映射的方法中，这种方法用符号和脑图来解释脑不同器官的不同功能。

In an early attempt at brain mapping, this etching of a symbolic head and phrenological chart aims to explain the functions designated to the different "organs" of the brain.

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In the first passage, the statement about language by criticism, that sign and meaning can never coincide, is what is precisely taken for granted in the kind of language we call "literary."

在第一段，关于语言的主张，用批判的方式，认为符号和意思永远不能相矛盾，正是这个主张,被人们认为是理所当然的，对于我们所说的文学语言来说“

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There is a Darwinian semiotics, understanding the relationships among species in semiotic terms.

达尔文主义的符号学，用符号学来研究物种间的关系。

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So this is a little bit of math, a little formality, but is everyone okay with that?

这里只是稍微用了点数学符号,还有简单的公式,大家都听懂了吗

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