Biosolids
n. 生物固体（从处理过废水中取得的固体或半固体材料, 常用作肥料）
🗣️ 情景例句
Would you like to sign the contract now?
你现在要签这合同吗？
My brother used to speak French to me all the time.
我的兄弟过去总是对我说法语。
What are you doing?
你在干什么？