Presedimentation
预沉淀; 预先沉淀
🗣️ 情景例句
You know what?
知道吗？
He is playing on the see-saw in the yard.
他正在院子里玩跷跷板。
Would it be too much to ask you to respond to my question by tomorrow?
可以请你在明天以前回复吗？