Some adrenaline junkies are even bolder – they've invented base jumping, in which people leap from tall structures, such as buildings or bridges, with a parachute.

一些肾上腺素瘾君子甚至更大胆——他们发明了定点跳伞，人们用降落伞从建筑物或桥梁等高大建筑物上跳下。