(每日一词）metrics

Metrics /ˈmɛtrɪks/ n. 衡量标准

英文解释: Metrics are standards of measurement used to evaluate, compare, or track the performance, quality, or progress of something.

1) 词根: metr- 测量(meter)

2) 后缀: -ics 名词后缀, physics 

例句: 

Revenue and customer growth are our key metrics of success. 收入和客户增长是我们成功的关键指标。

By what metrics do you call this a success? 你凭什么标准说这是成功？