Catechutannic acid
[医] 儿茶鞣酸
🧩 词语组成解析
🗣️ 情景例句
We have four people in the family, my parents, my elder brother and I.
我家有 4 口人，我的父母，我的哥哥和我。
How much does a round trip ticket to go there cost?
一张去那边的往返票要多少钱？
Indeed, we lack practice and experience nowadays in dealing with primitive conditions.
确实，我们今天缺乏对付原始环境的实践和经验。