Concentration gradiant
[电] 浓度梯度
🧩 词语组成解析
🗣️ 情景例句
Oh, here. On the ground floor we have the reception area ...
噢 看这个。在楼下 我们会有一个接待区……
It's not fun for me.
我觉得一点意思也没有。
We really wish you'll have a pleasant stay here.
我们真诚地希望你们在这里过得愉快。