Qs
abbr. 质量标准（Quality Standard）；质量规范（Quality Specification）
🗣️ 情景例句
Just my friend Mike and a few kids from school.
只有我的朋友Mike和学校里的几个伙伴。
I hope you bring his records with him.
我希望你带他的唱片一起来。
Yes, it is an old photo of my family.
是的，是我们家的一张老照片。