The first extreme sport might have been mountaineering, or mountain climbing.

最早的极限运动可能就是登山, 或者叫做登山运动.

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The extreme sport club members sanctioned recruiting of people under eighteen.

极限运动俱乐部的成员认为招募十八岁以下成员是可行的.

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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.

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He said he believed that any modern extreme sport involved precise control of scientific instruments.

　　他认为现代任何一项极限运动都需要对科学器具的精确控制.

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