只要有一个粗心大意的驾驶员便会发生车祸。
他们发现在一个拥有68万人口的典型郡县中，禁烟令使涉及酒精的车祸发生率增加到百分之十三。
They found a smoking ban increased fatal alcohol-related car accidents by 13% in a typical county containing 680,000 people.
在一项长达18个月的研究中，大学生们利用一个精确的行驶模拟装置证明了当司机驾驶并同时发信息的时候发生车祸的可能性增长了8倍。
In a study over the last 18 months, college students using a sophisticated driving simulator showed an eight times greater crash risk when texting than when not texting.
应用推荐