Methanedicarbonic acid
[建] 丙二酸
🧩 词语组成解析
🗣️ 情景例句
Yes, I am.
是的，我是。
It really comes in handy.
有了它真是方便。
concludes that it must be the gateway to world that lies beyond.
日落处想必是通往遥远世界的大门。