Regolith
n. （=mantlerock）[地质]风化层, 土被
🗣️ 情景例句
Rock-a-bye, baby, on the tree top,
摇呀摇， 小宝宝， 在树梢，
The shortest answer is doing the thing.
最简短的回答就是干。
What did you say?
你说什么？