Gravisphere
n. [天]引力层( 指以一个天体的引力为主的球形区域)
🗣️ 情景例句
She has a clear head.
她头脑清晰。
I asked him to stop, but he wouldn't.
我请他停止，但是他不肯。
The nurse assisted the doctor in the operating room.
护士在手术室协助医生动手术。