Xeronic acid
[化] 干酮酸; 二乙基丁烯二酸
🧩 词语组成解析
🗣️ 情景例句
He appeared ill at ease at the party.
他在宴会上显得很拘谨。
Ouch! That hurts.
好痛呦！会受伤哩！
We had spent several days in a small town and visited a number of old churches in the vicinity.
我们在一座小镇上逗留了几天，参观了附近的许多古老的教堂。