Concentration gradiant
[电] 浓度梯度
🧩 词语组成解析
🗣️ 情景例句
In what section can I find mouthwash?
我在哪个购物区能找到漱口水呢？
We have new methods like compensation trade and joint ventrue.
我们有补偿贸易和合资经营。
I gave much time to the old car.
我在这辆破车上花了不少时间。