/kraɪˈtɪərɪən/
a standard or principle by which sth is judged, or with the help of which a decision is made （评判或作决定的）标准，准则，原则
The main criterion is value for money.
主要的标准是要划算。
What criteria are used for assessing a student’s ability?
用什么标准来评定一个学生的能力？