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
with my own two hands, practically.
差不多是独自完成的。
Hedges have eyes, and walls have ears.
篱笆有眼，隔墙有耳。
Yes. But it's such an important match, we can't miss it.
是的。但是这是场很重要的比赛，我可不想错过。