4. At the same time, the American Law Institutea group of judges, lawyers, and academics whose recommendations carry substantial weightissued new guidelines for tort law stating that companies need not warn customers of obvious dangers or bombard them with a lengthy list of possible ones.
[参考译文] 与此同时，美国法律研究所由一群法官、律师和理论专家组成，他 们的建议分量极重发布了新的民事伤害法令指导方针，宣称公司不 必提醒顾客注意显而易见的危险，也不必连篇累牍地一再提请他们注意 一些可能会出现的危险。
5. Unlike most of the world"s volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth"s surface; on the contrary, many of them lie deep in the interior of a plate.
[参考译文] 跟世界上的大多数火山不同的是，它们(热点)并不总是在由构成地球 表面巨大漂流板块之间的边界上出现;相反，它们中有许多位于一个板 块较纵深的内部。
