speedboy

例句：

1. 1. The speedboy is always the first to finish his race.
   速度小子总是第一个完成他的比赛。
2. 2.He's a speedboy; he can run faster than anyone else.
   他是个速度小子；他跑得比任何人都快。
3. 3. Speedboys are often seen in sports like basketball and football.
   速度小子们经常在篮球和足球等运动中出现。