Pentafining
[机] 戊烷精炼
🗣️ 情景例句
By plane?
坐飞机来？
What flights do you have from New York to London tomorrow?
明天从纽约飞往伦敦的有哪几班机？
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？