Sigma orbital
[化] σ轨道
🧩 词语组成解析
[计] 求和\\n[医] σ(希腊文第十八个字母)
orbital
['ɔ:bitl]
adj. 轨道的;眼窝的;
🗣️ 情景例句
This is fun.
很有意思。
Yesterday was Sunday.
昨天是星期日。
They have nothing to eat.
他们没有东西吃。