Methanedicarboxylic acid
[建] 丙二酸
🧩 词语组成解析
🗣️ 情景例句
There's a lot of good things about suburban living.
郊区生活是有许多优点。
I'm sorry, but I didn't understand your question. Could you please restate it?
对不起，你的问题我没有理解，请你再说一遍好吗？
'Good heavens!' exclaimed his wife.
“天啊！”他的夫人惊叫，