Ethnogeny
n. 人种起源学, 人种学
🗣️ 情景例句
It doesn't mean you have to be a doctor.
这并不意味着你一定要当医生。
Don't worry about it.
别管他！
Man-made satellites have been sent up into space by many countries.
许多国家都成功地把人造卫星送入了太空。