K electrons
[化] K层电子
🧩 词语组成解析
n. 电子( electron的复数形式 )
🗣️ 情景例句
They come back here for lunch,
他们回到这儿来吃午餐，
I'm sorry, but I didn't catch what you said.
对不起，我没有听明白你的话。
Dan wondered why he was wanted by the police, but he went to the station yesterday and now he is not worried anymore.
丹奇怪警察为什么找他，但昨天还是去了，结果他一再担心了。