Planetesimal
n. 星子, 小行星体
🗣️ 情景例句
Do you ever think about your clildhood?
你回忆过童年吗？
No. I was planning to stay home.
不，我打算呆在家里。
I mean powder that is made from fish, blood and bone.
我是指用鱼、血和骨头制成的粉末。