And then finally, in terms of driving, there's the issue of the single-largest killer of healthy adults, and one of the largest killers of all people, is car crashes.
最后一点, 由于汽车驾驶问题 引发的车祸, 已经成为健康成人的 最大死亡威胁, 同时也是公民 最大的死亡威胁之一.