Regolith
n. （=mantlerock）[地质]风化层, 土被
🗣️ 情景例句
It's OK, Susan.
太好了， Susan。
Please say it again.
请再说一遍。
For a long time.I watched them scurrying around the base of the tree in bewilderment.
在很长一段时间里，我看见蚂蚁围着大树底部来回转悠，不知所措。