Polyprotonic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
In face, Australia is the only country that is also a continent.
事实上，澳大利亚是唯一作为洲的国家。
You shouldn't refuse the children's request.
拒绝孩子们的恳求是件不好的事。
Where do the twins sit?
双胞胎坐在哪里？