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
Know what? Aren't you going to tell me?
什么事？你不打算告诉我吗？
Some students quit school due to poverty.
一些学生因贫困而辍学。
I'm happy to meet you.
很高兴见到你。