Specific refraction
[化] 折射系数
🧩 词语组成解析
🗣️ 情景例句
Excuse me, Mr. Carlson,
对不起 ，Carlson先生，
Archeologists still can only surmise as to the origin of Man.
考古学家们对于人类的起源依然无法推测。
She was thinking that she must reprimand her home help the next morning for such a monstrous piece of negligence,
她心想明天上午一定要好好训斥那个干家务的帮手，她竟如此疏忽大意。