Pentenedioic acid
[化] 戊烯二酸
🧩 词语组成解析
🗣️ 情景例句
The mailman just dropped some mail in our box, Grandpa.
邮差刚刚塞进一些信件在我们的信箱， 爷爷。
Love is like the moon; when it does not increase it decreases.
爱情像月亮，不营即亏。
It is much cheaper to post or email a long report than to fax it.
邮寄或电子邮递一封长篇报告比传真要便宜得多。