Polyprotonic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
and the problem is that it's set up primarily for kids to play.
而问题是它主要是让孩子们去玩的。
When the belly is full, the bones would be at rest.
饱暖图安逸。
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。