Qacs
(qac 的复数) abbr. quaternary ammonium compound 季铵化合物（杀菌剂）
🗣️ 情景例句
Do you know anyone who can forge a sick note for me?
你知道谁可以帮我虚开一张病假条？
Whom will you speak to?
你将和谁说话？
The majority of people in the town want to encourage new industry in the area.
城里大多数人都希望促进这一地区工业的发展。