This is a newer developing entertainment, regarded as an extreme sport.

这更是一种新兴的娱乐，被称之为极限运动。

youdao

Slalom canoeing is an extreme outdoor water sport, so it has a certain degree of risk.

皮划艇激流回旋是户外水上极限运动，项目本身具有一定的危险性。

youdao

Bicycle Moto Cross (BMX), an extreme style of bicycle track racing, became a sport in the 2008 Summer Olympic Games in Beijing, China.

自行车越野赛是一项极限自行车赛道竞技赛在2008成为中国北京夏季奥运会的参赛项目。

youdao

In an extreme scenario, illness could force Olympics coaches to dig deeply into their player reserves for replacements, depending on each sport's rules, which are set by international governing boards.

CNN: Canada's Olympic-sized plan to fight H1N1