Styphnic acid
[化] 收敛酸; 2,4,6-三硝基苯间二酚
🧩 词语组成解析
🗣️ 情景例句
Fortunately, they returned safely.
说来幸运，他们平安回家了。
What's the weather like today?
今天天气如何？
John is a Canadian. He lives in a tall building in the city of Toronto.
约翰是加拿大人。他住在多伦多市的一幢高楼里。