Koch's acid
[化] 科赫酸; α-萘胺-3,6,8-三磺酸
🧩 词语组成解析
🗣️ 情景例句
The whole family decided to spend their holiday in Hawaii.
全家决定到夏威夷度假。
I subscribed to a lot of periodicals last year.
去年我订了许多期刊。
No, it isn't! That's a cat!
不，不在！那是一只猫。