Indexometer
[医] 折射指数计
🗣️ 情景例句
I can only stay a few minutes.
我只能停留几分钟。
As a senior, Peter is writing his thesis.
作为大学四年级学生，彼得正在写毕业论文。
Yes, it is. You need to wear warmer clothes.
是啊，你应该穿得更暖和些。