Ethyloic-
[化] 羧甲基; 侧链上的羧甲基
🗣️ 情景例句
I am calling on behalf of the Private Teacher Company.
我代表家教公司给您打电话。
A good beginning makes a good ending.
善始者必善其终。
Can't you do anything right?
成事不足，败事有余。