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
Of Course. Easy. No sweat.
当然 小事情。绝无问题。
Until Monday or Tuesday of next week.
借到下周一或周二。
What was wrong with Jim ? Did he hurt himself?
吉姆怎么啦？他伤着自己啦？