【简答题】Three Yale University professors agreed in a panel discussion tonight that the automobile was what one of them called 'Public Health Enemy No. 1' in this country. Besides polluting the air and congest...
【简答题】请阅读下面短文,并按照要求用英语写一篇 150 词左右的文章。 When we read newspapers, we often come across such English words as “” and “PK.” When we watch TV, we frequently hear words like “NBA” or “PM2.5.” When we speak, we...