Population dynamics
[计] 人口动力学
🧩 词语组成解析
dynamics
[dai'næmiks]
n. 动力学、力学;（音乐中的）力度变化;力度强弱法;动态;动力( dynamic的名词复数 );力学;力度;活力;
🗣️ 情景例句
It was so nice to be out in the country.
出去置身乡下真是太好了。
In university, students are trained to become teachers and engineers.
大学的学生被训练成为教师和工程师。
So he took off the second shoe and put it under his bed very quietly.
他脱下第二只鞋子，轻轻地放在床下边。