x-axis

例句：

1. 1.The graph shows the relationship between x and y, where x represents time and y represents temperature.
   这个图表显示了x和y之间的关系，其中x代表时间，y代表温度。
2. 2. The x-axis is labeled with the values of x from -10 to 10, while the y-axis is labeled with the values of y from -50 to 50.
   x轴上标有从-10到10的x值，而y轴上标有从-50到50的y值。
3. 3. In this model, the x-axis represents the number of users, and the y-axis represents the number ofmessages received per user.
   在这个模型中，x轴表示用户数量，y轴表示每个用户收到的消息数量。