Concentration diffusion
[化] 浓差扩散
🧩 词语组成解析
🗣️ 情景例句
Who jammed the photocopier, again?
谁又把复印机卡住了？
Money doesn't grow on trees.
钱不是从天上掉下来的。
The woman knew that the nearest village was miles away.
这位妇女知道，即使最近的村庄也有数英里远。