Qs
abbr. 质量标准（Quality Standard）；质量规范（Quality Specification）
🗣️ 情景例句
You know I do.
你知道我是关心。
How often do you eat out?
你隔多久在外面吃一次饭？
What's that fly doing in my soup?
我汤里的这只苍蝇在干什么呢？