Qcs
abbr. 质量控制系统（Quality Control System）
🗣️ 情景例句
You don't mean to tell me that you and ...
你不会是告诉我们你和……
When can you pick up your ticket?
你什么时候可拿到车票呢？
That's not allowed. Once you are in here, listen to your teacher.
那是不允许的。一旦进来了，你们要听老师的话。