Pyrrotriazole
焦三唑, 1,2,3,4-四唑
🗣️ 情景例句
Marriage is an institution not to be taken lightly.
婚姻是个不能儿戏的体系。
Where the knot is loose the string slips.
结子一松掉，绳子就滑脱。
Except us.
我们俩除外。