Aerosonator
脉冲式喷气发动机
🗣️ 情景例句
Are you ready to go?
准备好动身吗？
Whose book is this?
这是谁的书？
It had broken down the previous summer, and though I promised to repair it, I had never got round to it.
那台割草机去年夏天就坏了，尽管我答应修，但一直没抽出时间，