Regolith
n. （=mantlerock）[地質]風化層, 土被
??? 情景例句
He actually took me to meet his foreman.
事實上他帶著我去見他的工頭。
Please call before you come,otherwise we might not be home.
請在你來前打一下電話來,否則我們可能不在家。
If so, look out for books, articles or magazines about them.
如果有，你就該找一些有關的書籍、文章或雜志來讀。