Cosanic acids
[化] 二十级酸; 二十级烷酸; 念酸(由C20到C29的廿酸)
🧩 词语组成解析
n. 酸, 酸类；有酸味的东西（acid的复数）
🗣️ 情景例句
Do you think the skirt length is right, Ellen?
觉得这裙子长度合适吗，Ellen？
Was I supposed to help you today?
今天我想帮你忙。
Both men had hardly had time to realize what was happening when they were thrown violently into the sea.
他们两个还没来得及意识到究竟发生了什么事情，就被猛地抛入了海里。