Demographers
(demographer 的复数) n. 人口统计学家
🗣️ 情景例句
He never married because
他不结婚是因为
On a crowded train, one comes in contact with many people.
在拥挤的火车里面，会和许多人接触。
There is none of the hurry which, in our society,
那里没有我们今天社会中的匆忙生活，