Methanedicarbonic acid
[建] 丙二酸
🧩 词语组成解析
🗣️ 情景例句
Every cloud has a silver lining.
乌云背后是银边，否极泰来。
He can't dress himself yet because he's too young.
他还不能给他自己穿衣服因为他是太年轻的。
Why don't I pick you up at your house?
为什么不让我去接你呢？