Sparse index
[计] 稀疏索引
🧩 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
Thank you. I'll make out the contract for you to sign tomorrow.
谢谢。我将起草合同，明天就签。
Saving is getting.
节约等于收入。
It was spring,but the weather was awful.It rained all the time.
是春天，但天气太糟了。一直在下雨。