Regolith
n. （=mantlerock）[地质]风化层, 土被
🗣️ 情景例句
But schedule another production meeting for tomorrow.
务必安排在明天举行另一次生产会议。
Steel ball
钢珠
He called out to the children and threw the ball back to the bank.
他大声叫着那些孩子，把球扔回到岸上。