Qar
[医][=quality assurance reagent]质量保证试剂
🗣️ 情景例句
There are four of us including my parents, a younger sister and me.
有四口人，父母亲、妹妹和我。
He answered almost all of my questions.
他回答了我几乎所有的问题。
Please let me check the bill.
请让我核对一下帐单。