Marv
abbr. 机动重返飞弹（manoeuvring reentry vehicle）
🗣️ 情景例句
He gave them to me to hold on to them
他给我戒指， 要我自己保管，
A good book is a best friend who never turns his back upon us.
一本好书，莫逆之交。
Yes, there is one.
是的，有一棵。