比赛开始了——当裁判打枪时运动员们开始跑，当你听到枪声后，然后你可以开始跑了。

The race begins - runners begin when they shoot a gun up in the air, and when you hear the gun then you can start running.

youdao

比赛开始了——当裁判打枪时运动员们开始跑，当你听到枪声后，然后你可以开始跑了。

The race begins - runners begin when they shoot a gun up in the air, and when you hear the gun then you can start running.

youdao