Qs
abbr. 质量标准（Quality Standard）；质量规范（Quality Specification）
🗣️ 情景例句
Are you sending it by regular or by speed?
你要寄平信还是快递？
Unless there is a sudden change of political situation, it is not accepted to execute the contract only partially.
除非有什么突然的政局变化，否则执行部分合同不能被接受。
She struck the keys too hard and two of the strings were broken.
她在击琴键时用力过猛，损坏了两根琴弦。