Medula
毛髓
🗣️ 情景例句
Let's go for lunch. I'm buying.
去吃午饭吧， 我请客。
Michael must hold on to the driver of the motorcycle.
米高必须紧紧抓住机车的骑士。
No, thanks. It's big, but it isn't heavy. It's light.
不用了，谢谢，是大盒子，但不重。很轻。