Qac
abbr. quaternary ammonium compound 季铵化合物（杀菌剂）
🗣️ 情景例句
Your duties include checking the post and distributing it.
你的职责是检查和发送邮件。
Mother's darlings are but milksop heroes.
奶水泡出懦弱汉。
A day later.
一天以后