Simple arithmetic index number
[经] 简单算术指数
🧩 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 is making steady progress in her learning.
她在学习中不断进步。
He is absolved of all blame.
他从各种的非难中获得解脱。
When he was decorating his house, he had gotten the bedroom painted first.
他装修房子时，先刷了卧室。