Propyloic-
[化] 羧乙基
🧩 词语组成解析
羧乙基
🗣️ 情景例句
Work harder and practice more.
要更加努力地学习，更加勤奋地操练。
We have a lot of invitation cards, but they are all for the same date.
我们接到了许多请帖，但是上面的日期却全都是同一天。
How are things going?
事情进展得怎样？