Depropanization
丙烷馏除
🗣️ 情景例句
This city is just too overpopulated.
这个城市人口太过稠密。
I have received a letter from my cousin.
我收到了我表兄的信。
but they can still stop you when you are going through the Green Channel and have nothing to declare.
但是，当你通过绿色通道，没有任何东西需要申报时，他们仍可以拦住你。