Aithioic acid
[机] 二硫羧酸
🧩 词语组成解析
🗣️ 情景例句
Does that make any sence?
这样清楚了吗？
A friend is not so soon gotten as lost.
交友慢，失友快。
I'd like to come and cover the walls with some bright paintings.
我愿意给墙上画几幅色彩鲜艳的画。