Hydroxy-butanedioic acid
[化] 羟基丁二酸; 苹果酸
🧩 词语组成解析
[化] 氢氧基
🗣️ 情景例句
I understand what you're saying.
我明白你说的意思。
I invited him to come back, but he wouldn't.
我请他回来，但是他不肯。
I think we must buy some meat for supper.
我想我必须买一些晚饭吃的肉。