To try and give you a sense of this, imagine you go camping in July somewhere in Europe or in North America, and you wake up the next morning, and you look around you, and you see that 80 percent of the trees, as far as you can see, have dropped their leaves and are standing there naked.
让我试着帮助你们来感知一下， 想象你七月份去露营 在欧洲或者北美的什么地方 第二天早上醒来，你环顾四周， 发现百分之八十的树 在你视线所及范围内 都已经掉光了树叶，光秃秃地立在那儿