Y coordinates: The Y coordinate is a point's vertical distance from the origin.

Y 坐标：Y 坐标是某一个点距离原点的纵向距离。

youdao

Well you know what a point is, it's got an x- and a y- coordinate, it's natural to think about those two things as belonging as a single entity.

把这两个坐标认为，是属于一个独立的实体，是理所当然的事情,因此实现这个目的的。

麻省理工公开课 - 计算机科学及编程导论课程节选

The equation for the y coordinate is the height of the building.

坐标的方程是楼的高度

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It's easy to think of a point as just a list of an x- and a y- coordinate.

或者说有两个元素的数组,把一个点认为是含有x坐标。

麻省理工公开课 - 计算机科学及编程导论课程节选