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
I type about 40 words per minute.
一分钟我能打40个字。
Whom will you play with?
你将和谁一起玩？
I went on walking, bending down because the roof of the cave was not very high.
因为洞顶不是很高，我继续弯着腰往前走。