Prefractionator
[化] 初步分馏塔
🗣️ 情景例句
I grew up in Beijing, but I was in Los Angeles for two years.
我在北京长大，不过在洛杉矶已呆了两年。
Charity begins at home, but should not end there.
仁爱须由近及远。
When might you go?
什么时候想去呢？