Fluorescence standard substance
[化] 荧光标准物
🧩 词语组成解析
fluorescence
[[flɔ:'res(ə)ns]]
n. 荧光, 发荧光, 荧光性\\n[化] 荧光
standard
['stændɚd]
n. 标准，规格;旗，军旗;度量衡标准;直立支柱;
adj. 标准的，合格的;普遍的，一般的;公认为优秀的;
🗣️ 情景例句
She's enthusiastic about the new teaching method.
她对新的教学方法很热心。
I remember the girl whose father owns a jewelry store.
我记得那个女孩的父亲有一家文具店。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时