Selective index
[计] 选择下标, 选择索引
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
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
When did you last go fishing with Robbie?
你上一次和Robbie一起去钓鱼是什么时候啦
He has a book.
他有一本书。
The children were at school, my husband was at work and the house was quiet.
孩子们在上学，我丈夫在上班，家里清静得很。