Qs
abbr. 质量标准（Quality Standard）；质量规范（Quality Specification）
🗣️ 情景例句
He prays every night before sleep.
他每晚睡觉着都祈祷。
As soon as I get to Guangzhou, I'll drop you a line.
我一到达广州，就给你写信。
When he woke up, his hands and feet had already been tied together.
当他醒过来的时候，他的手脚已经被捆起来了。