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
I just don't know what to say.
我真不知该说什么好。
But the yesterday's forecast reported it'd be fine.
不过，昨天的预报说是会放晴的。
The whole village soon learnt that a large sum of money had been lost.
整个村子很快知道，有一大笔钱丢失了。当地的屠户萨姆。