More and more researches indicate that maximal speed is the key factor to improve 100-meter performance.

越来越多的研究表明，最大速度是提高100m成绩的关键。

youdao

More and more researches indicate that maximal speed is the key factor to improve 100-meter performance.

越来越多的研究表明，最大速度是提高100m成绩的关键。

youdao