英语听力每日五分钟（高级）20

The precision ratio is an index that indicates how many articles meet the search criteria out of all of the articles retrieved.
精确度是一个指示表，它表示在检索到的所有文章中有多少篇文章符合搜索标准。
His uncle went to Europe on business a week ago and he is now either in London or in Paris.
他叔叔一周前去欧洲出差,他现在要么在伦敦，要么在巴黎。
Early man used his fingers and toes to count the animals he owned, or the measures of grain he had stored.
远古时代的人用他的手指和脚趾来计量他拥有的动物，或者他们储存的谷物。
This book aims to provide an explanation of modern Japanese grammar that is as systematic and as easily understood as possible.
这本书的目的是系统地是提供一个容易理解的现代日语语法。
I'd rather go by train. I have a license,but no real driving experience, so I'm not very sure of myself behind the wheel.
我宁愿坐火车去。我有驾照，但没有真正的驾驶经验，所以我不太确定自己可以开车。
Uncontrolled, these forces may be dangerous and destructive, but once mastered they can be bent to man's will and desire.
这些力量非常危险，且具有破坏性，不受控制，但一旦掌握，它们就会服从于人类的意志和愿望。
Britain's currency crisis has turned into a political one over government failure to stop the pound from going into free-fall.
英国的货币危机已经演变成一场政治危机，政府未能挽救英镑
下跌。
This inefficiency is a result of the animal's large body and massive legs and feet,which contribute a sideways motion to its walk.
身躯庞大，支腿众多只能横向运动，是导致它行动效率低下的原因。