Aithioic acid
[机] 二硫羧酸
🧩 词语组成解析
🗣️ 情景例句
Excuse me, but I know you from somewhere.
打扰一下，我好像在什么地方见过你。
The sooner, the better.
越快越好。
Many of them have to wait six months for their goods.
许多顾客不得不等上半年才得到所需的商品。