Thus, we give a make-graph method of conic section on plane with arbitrary point as foci, arbitrary line as directrices and arbitrary positive number as eccentricity.

从而给出了以平面上任意点为焦点、任意直线为准线，任意正数为离心率的圆锥曲线的直接作图方法。

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In the meantime, what Saussure is doing with this relationship above and below the line is, he is saying that there is an arbitrary relationship between the concept and the sound image.

同时，索绪尔觉得这组关系,也就是线上和线下的这个组合，他说，这是一个任意的组合,在事物和声音形象之间。

耶鲁公开课 - 文学理论导论课程节选

How can it be more plausible to draw an arbitrary line based on equidistance when there is already a jurisdictional boundary set out?

ECONOMIST: Broadcast news

Because many things everybody knows about are technically secret, creating an arbitrary, ever-shifting line between the classified and the public domains.

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Where we draw the line can be arbitrary.

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