Marv
abbr. 机动重返飞弹（manoeuvring reentry vehicle）
🗣️ 情景例句
He had an emergency.
他有紧急事情。
How many passengers were on the train?
在火车上有多少旅客？
I turned to look at the children, but there weren't any in sight: they had all run away! The man laughed when he realized what had happened.
我转过头去看那些孩子，但一个也不见，全都跑了！当那个人明白了发生的事情时，笑了起来。