Arithmetic index number
[经] 算术式指数
🧩 词语组成解析
index
['ɪndɛks]
n. 索引;<数>指数;指示;标志;
vt. 给…编索引;把…编入索引;[经济学]按生活指数调整（工资、价格等）;
vi. [机械学]转位;
in(in)+dex(proclaim)→指针；索引；指数；食指；指标
🗣️ 情景例句
She was a beauty in her day.
她年轻的时候是个美人儿。
Every cook praises his own broth.
自吹自擂。
It was upon this principle that the first instruments were made,
据这一原理，制造出了最初的地震仪器，