adj. tangential
特别是那种正切的造型在自然界中几乎不存在。
Conspicuous is the nearly complete absence of tangential forms in nature.
你知道这仅仅是正弦，余弦和正切的。
And you know this is just what sine, cosine, and tangent are.
也是世界上最早的几个程序员之一，她正尝试着完成一个，复杂的求反正切的程序。
Who was also one of the word's first programmers. So she was trying to write this program, and it didn't work.
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