英语语法分析

I see demography as a central subject related to economics.

我认为人口统计学是与经济学相关的核心学科。

Why should you consider taking a course in demography in college?

为什么你应该考虑在大学里修一门人口学的课程呢？

Demography gives you the tools to understand and to address these problems.

人口统计学为你提供了理解和解决这些问题的工具。