Ectohumus
[地质]外腐殖质
🗣️ 情景例句
No, I'm sorry. This is our rock-bottom price.
很抱歉，这是我们的最低价格。
What school did you go to?
你在哪里上学？
Every day he made one of the smaller animals bring him something to eat.
每天他让一只小动物拿东西来给他吃。