Stratospheroid
平流层气球
🗣️ 情景例句
That's relief.
真令人欣慰。
I've got a hostage.
我捉到一名人质。
It has four Rolls-Royce Merlin engines, but the group will need to have only three of them rebuilt.
该飞机装装配有4台罗尔斯-罗伊斯的默林发动机，但是他们只需要修复其中的3台。