four-point starting box

例句：

1. 1.The four-point starting box is the most important part of the race.
   四点起跑架是比赛中最重要的部分。
2. 2.The athletes lined up at the four-point starting box.
   运动员们在四点起跑架前排队。
3. 3. The runners ran around the four-point starting box.
   跑步者在四点起跑架周围奔跑。