freestyle

柯林斯词典

1. ADJ Freestyle is used to describe sports competitions, especially in swimming, wrestling, and skiing, in which competitors can use any style or method that they like when they take part. (游泳、摔跤或滑雪比赛中)自由式的[ADJ n]
...the 100m freestyle swimming event. ...100米自由式游泳比赛。
2. N-SING Freestyle is also a noun. 自由式
She won the 400-metre freestyle. 她在400米自由式中获胜。