center mark

• 中点

center mark的用法和样例：

例句

1. The runner reached the halfway mark in the race after 49 seconds.
   比赛四十九秒钟后赛跑选手抵达了中点。
2. The color gradient is a smooth shading of colors from the center point of the path to the outside boundary edge of the path.
   彩色渐变是从路径的中点到路径的外边界边缘的平滑的彩色渐变。