Mah
abbr. 马来酸酐（Maleic Anhydride）
🗣️ 情景例句
What university are you attending?
你现在就读于哪所大学？
It's nothing. Don't mention it.
区区小事，何足挂齿。
Wei Hua's pen was broken, so she needed a new one.
魏华的钢笔坏了，所以她需要一支新笔。