Ethyloic-
[化] 羧甲基; 侧链上的羧甲基
🗣️ 情景例句
He doesn't have any family with him.
他没有家人和他在一起。
Which would you prefer, a smoking seat or a non-smoking seat?
你喜欢哪种，吸烟座还是禁烟座呢？
What was wrong?
怎么啦？