Electron concentration
[机] 电子浓度
🧩 词语组成解析
electron
[i'lektrɔn]
n. 电子;
🗣️ 情景例句
He made an impressive speech.
他发表了一篇感人的演讲。
What kind of climate do you have?Is it hot?
你们那里的天气怎么样？它是炎热的吗？
As long ago as the fourteenth century,
早在14世纪，