Mah
abbr. 马来酸酐（Maleic Anhydride）
🗣️ 情景例句
to be with people--people his own age.
和别人交往像他那般年纪的人。
The first element of success is the determination to succeed.
成功的首要因素是要有成功的决心。
Doesn't the quantity discount apply on this order?
这次下的单子没有大宗折扣吗？