agrarian overpopulation农业人口过剩
overpopulation detail人口过多
relieve overpopulation缓解人口过剩问题
relative overpopulation相对过剩人口
Owing To Overpopulation由于人口过剩
relative overpopulation theory相对过剩人口理论
Overpopulation causes aging人口过多会导致老龄化
Overpopulation and Social Behavior我口过多与社会行为
population-overpopulation人口过剩
N-UNCOUNT（不可数名词） If there is a problem of overpopulation in an area, there are more people living there than can be supported properly. 人口过多
...young people who are concerned about overpopulation in the world.
...关心世界人口过多的年轻人。