Bisulfide
n. [化]二硫化物
🗣️ 情景例句
We have four people in the family, my parents, my elder brother and I.
我家有 4 口人，我的父母，我的哥哥和我。
I don't remember where I was then.
我不记得那时我在哪里。
He is just a child.
他只是个孩子。