Dithionous acid
[化] 连二亚硫酸\\n[医] 联二亚硫酸, 次硫酸
🧩 词语组成解析
🗣️ 情景例句
Not until recently.
最近才考虑到。
My cousin is a member of a stamp club, He seems stamp collecting.
我的表兄是一个集邮俱乐部成员，他似乎很喜欢集邮。
The crowd began to shout, but the drunk was unaware of the danger.
人们开始大叫起来，但醉汉却没有意识到危险。