perpendicular

/ˌpɝ.pənˈdɪk.ju.lɚ/ 名词 C2

中文：垂线、垂面

A line or plane that is perpendicular to another.
A device such as a plumb line that is used in making or marking a perpendicular line.

复数 perpendiculars

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来自图书馆

After all, Count, your own exit is more likely to be perpendicular than horizontal.

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