Methanedicarboxylic acid
[建] 丙二酸
🧩 词语组成解析
🗣️ 情景例句
and tell the Levinsons we have their cute little spaniel.
告诉Levinson夫妇他们可爱的小猎犬在我们这。
He who wants a mule without fault, must walk on foot.
如要骡子无缺点，只有自己徒步行。
OK.
好的。