Plot distance on the vertical Y-axis against time on the horizontal x-axis.Plot distance on the vertical Y-axis against time on the horizontal x-axis.
以垂直y轴表示距离，而以水平x轴表示时间。
the y-axisthe y-axis
（图表或地图的）纵轴（同 y-axis）
the second number in a pair; a number on a Y-axis that shows the coordinate (= the place along thatthe second number in a pair; a number on a Y-axis that shows the coordinate (= the place along that
