Mmpa
abbr. Marine Mammal Protection Act 海洋哺乳动物保护法; mercaptomethylphosphonic acid 巯基甲基膦酸
🗣️ 情景例句
There's much more to be done.
要做的事太多了。
A fool may give a wise man counsel.
愚者千虑，必有一得。
He could not see anything.
他看不见任何东西。