Although drivers can no longer see the road surface, they can still drive across safely by keeping within the guard rails on either side.

这时候坐在车里的人是看不见路的驾驶者却可以参看路旁的护栏安全地穿湖。

Instead, these experts focused primarily on a small group of skeptics of the dangers of cigarettes during the 1950s, many of whom had or would eventually have ties to the tobacco industry.

2004 年，布兰特博士被司法部聘请为重要专家，在指控烟草巨头的联邦欺案件中作证，并与烟草业雇佣来的一伙证人进行对质。根据为烟草巨头作证的 29 位历史学家自己的供述，他中大多数甚至没有参看过烟草业内部的研究或交流文档。相反，这些专家主要关注的是 20 世纪 50 年代的一小缀对香烟危害的怀疑论者，他中大部分人要么当时就与烟草业相勾结，要么最终也会通烟草业勾结起来。