Bisulfide
n. [化]二硫化物
🗣️ 情景例句
That's very nice of you, but I really can't.
你太客气了，可我真的非走不可。
They teach you English in an intensive course lasting just a week.
他们用一周的时间教速成英语课程。
As the parents had five children, life was a perpetual struggle against poverty.
家里已有5个孩子，全家人常年在贫困中挣扎。