Polyprotic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
Why does the boss have such a large, comfortable chair?
为什么老板有张那么舒服宽大的椅子？
I would prefer if he comes here.
我倒愿意他去我们那里。
But every night he heard the noise upstairs.
但每天晚上他都听到楼上的声音。