标签：话题作文 话题 英语四级作文
字数：1500字
提要：Population Control 1．科学的进步和生活条件的改善导致了世界人口的迅速增加。2．但是人口过分增长会对人类社会的存在构成威胁。4ia英语作文网3．为了保证人类社会的稳定发展……。4ia英语作文网 Progress in science and the improvement of living conditions have led m the rapidgrowth of the world population. Modern medical science, for example, has made it possible for babies to grow up healthily and for people..