population growth
关于人口的英语作文

        As is seen from the two graphs, it is clear that with the rapid growth of U.S. population from 1800 to 1990, the number of its wildlife species no longer existing soared during the same period. Naturally, we can draw the conclusion that the sharp decline of wildlife species resulted from the population growth. 　　Two reasons may account for this phenomenon. To begin with, as the populat    （共 1395 字）     [阅读本文] >>