Qar
[医][=quality assurance reagent]质量保证试剂
🗣️ 情景例句
OK, I'd love to.
好，我很乐意参加。
The master always exacts quality work from his students.
老师常常要求学生们认真踏实的完成功课。
While this was going on, Mr.Taylor was upstairs.
这开始发生时，泰勒先生正在楼上。