Qcs
abbr. 质量控制系统（Quality Control System）
🗣️ 情景例句
Well, that's what I do.
是啊 ，我正是这么做的。
When you called me, I was eating dinner.
当你打电话给了我时，我正在吃晚饭。
They were puzzled by several things.
有几件事情使他们感到迷惑不解。