Refractive index
[化] 折光率; 折射率
🧩 词语组成解析
a. 折射的, 有折射力的\\n[医] 折射的, 屈光的
index
['ɪndɛks]
n. 索引;<数>指数;指示;标志;
vt. 给…编索引;把…编入索引;[经济学]按生活指数调整（工资、价格等）;
vi. [机械学]转位;
in(in)+dex(proclaim)→指针；索引；指数；食指；指标
🗣️ 情景例句
Follow the recipe properly or it will never come out right.
照着菜谱说的做，不然的话，味道就不对。
If you were to attend the banquet ,what would you wear?
如果你将出席宴会，你将穿什么？
I don't know.I've already had my holiday this year.
我不知道。今年我已度过假了。