Qac
abbr. quaternary ammonium compound 季铵化合物（杀菌剂）
🗣️ 情景例句
We're a family, Harry.
我们是一家人， Harry。
This woman used too much soap in her washing machine.
这个女人放了太多的洗衣粉到洗衣机里。
Is there anything else that you want me to get?
您还要我买别的东西吗？