【正确答案】 1、正确答案：Seeking all over the chemical books, you will never find the kind of air called "vulgar air" among carbon dioxide , oxygen and up to chlorine. Actually, it is something beyond the detection of the five senses, something more diluted and blurred than any other airs, which, in fact, can only be traced in the world of art, literature and social interaction. Such things as shabby air("han suan" in Chinese)and earthy air are not mentioned in chemistry books either. Nevertheless, none of these airs can be compared with vulgar air in terms of impalpability, because other than vulgar air, although they themselves transcend senses, yet their names can be related to things in reality and are metaphors or symbols of things we can sense. Behind each metaphor or symbol, there is an analogy, which means you"ve got clues for these airs. Speaking of shabby air, you think of vinegar in Shanxi province or Zhenjiang city at once: mentioning earthy air, you recall the smell of grasses so dense around the pond right after a summer shower. But what is the case with the vulgar air? Unfortunately, the "air "itself is empty enough, but vulgar is even more abstract.