Cocatanic acid
[建] 柯卡丹宁酸
🧩 词语组成解析
🗣️ 情景例句
Are you ready?
你准备好了吗
Where there are reeds, there is water.
有芦苇处必有水。
Excuse me for ringing you so late in the evening, but I've only just got home.
对不起，这么晚给你打电话，我刚到家。