Density current
[化] 异重流
🧩 词语组成解析
🗣️ 情景例句
I think I can swing that.
我想我能办到这点。
I have to hang up now.
我现在不得不挂电话了。
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。