Diffusibity
弥散性
🗣️ 情景例句
And I don't think it's a good idea
而且我觉得这不是个好主意
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
So then what happened?
后来怎么样？