Macrodemography
总体人口统计学
🗣️ 情景例句
You've got it all wrong.
你完全搞错了。
Business may be troublesome,but idleness is pernicious.
事业虽扰人，懒惰害更大。
This is a good photograph.Who are these people?
这是一张很好的照片。这些人是谁。