关于:The word horsepower was first used two hundred years ago.
关于:The word horsepower was first used two hundred years ago.James watthad made the world's f... 关于:The word horsepower was first used two hundred years ago.James watthad made the world's first widely used steam engine…开头的英语阅读理解题
The word horsepower (马力) was first used two hundred years ago .James Watt had made the world’s first widely used steam engine (蒸气机) .He had no way of telling people exactly how powerful it was ,...