demographer的例句大全

Professor Antonio Golini is a demographer at the University of Rome.

罗马大学安东尼奥教授是位人口统计学家.

Demographer William Frey says immigrants with young families will help keep the United States competitive.

人口统计学家佛瑞表示这些年轻的家庭会帮助美国保持竞争力.

Today, the typical American man marries for the first time when he is 29 years old--well above the historical low of 23 in 1956, but only three years older than in 1890, according to Jonathan Vespa, a Census demographer.

美国人口普查局的人口学家韦斯帕（Jonathan Vespa）说，现在典型美国男性首次结婚的年龄是29岁，远高于1956年的历史低点23岁，但只比1890年高出三岁。