Pinitannic acid
[化] 松单宁酸
🧩 词语组成解析
🗣️ 情景例句
My girlfriend recently broke my heart.
我的女朋友最近伤了我的心。
It's up to you.
一切由你决定。
No, I don't. Would you get it, please?
没有。你帮我拿一下吧。