Olefine acid
[化] 烯酸
🧩 词语组成解析
[化] 烯烃; 链烯烃
🗣️ 情景例句
That's like closing the gate after the horse has bolted.
那无异于马后炮。
She is supposed to be one of the best singers.
大家认为她是最有名气的歌星。
Nice to meet you too! What class are you in?
我也很高兴。你是哪班的？