Sapropel
[地质]湖泥(腐殖质), 腐殖泥
🔁 扩展释义
【化】 腐泥; 腐泥煤
🗣️ 情景例句
Thanks.
谢谢。
What is this?
这是什么？
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。