Caro's acid
[化] 过一硫酸(H-2SO-5或H-2SO-3[O-2])
🧩 词语组成解析
🗣️ 情景例句
Have you been waiting for me for a long time?
你已经等我很久了吗？
If I wanted to rent a van, how much would it cost?
要是我租一辆搬运车，得花多少钱？
Anything to follow?
还要什么？