Sigma electrons
[化] σ电子
🧩 词语组成解析
[计] 求和\\n[医] σ(希腊文第十八个字母)
n. 电子( electron的复数形式 )
🗣️ 情景例句
I need your help badly. My car can't start. Can you send somebody over?
我急需你们的帮助。我的车启动不了，能派人来修吗？
Many heads are better than one.
集思广益。
Morning! I'm sorry to trouble you. Could I borrow a pan, please? Mine has just broken.
早上好！对不起，打扰您了。我想借您的平底锅，可以吗？我的刚刚打碎了。