Methanedicarbonic acid
[建] 丙二酸
🧩 词语组成解析
🗣️ 情景例句
You know,maybe I'll put together some photos of Grandpa as a welcome present.
我说，或许我把爷爷的一些照片组合起来，作为欢迎他的一份礼物。
A man knows his companion in a long journey and a little inn.
路遥知马力，日久见人心。
These?
这几只？