Compactability index
[機(jī)] 壓實指數(shù)
?? 詞語組成解析
[機(jī)] 壓實性
index
['?nd?ks]
n. 索引;<數(shù)>指數(shù);指示;標(biāo)志;
vt. 給…編索引;把…編入索引;[經(jīng)濟(jì)學(xué)]按生活指數(shù)調(diào)整（工資、價格等）;
vi. [機(jī)械學(xué)]轉(zhuǎn)位;
in(in)+dex(proclaim)→指針；索引；指數(shù)；食指；指標(biāo)
??? 情景例句
that I never could have done this book
我不可能完成這本書
Study sickness while you are well.
居安思危。
Can you put me in the picture about the World Cup Football Match?
你能給我講講關(guān)于世界杯足球賽的狀況嗎？