population amount

• 人口数量

population amount的用法和样例：

例句

1. We must do something to slow down the population increase.
   我们必须采取措施降低人口数量的增长。
2. Aqueducts allowed cities to grow much larger by significantly increasing the amount of available water.
   由于引水渠给城市提供了大量的水，人口数量和城市的大扩展成为可能。