Extreme sport emphasizes participation and the spirits of courage,which need to take the risk of life or being injured and can give one the extreme sense of cheefulness and success.

• （极限运动强调参与和勇敢精神,它需要冒受伤甚至死亡的危险，能够给予人在跨越心理承受极限时获得极大的愉悦感和成就感。）