The easiest of all, probably, is to just go first along the x-axis to and then go up parallel to the y-axis.

最简单的会是，首先沿x轴到,然后平行于y轴走。

youdao

Draw a line at 80% on Y-axis parallel to X-axis.

在与X轴平行的Y轴的80%处画一条直线。

youdao

Draw a line at 80% on Y-axis parallel to X-axis.

在与X轴平行的Y轴的80%处画一条直线。

youdao