Index upgrade
[計] 索引改進
?? 詞語組成解析
index
['?nd?ks]
n. 索引;<數>指數;指示;標志;
vt. 給…編索引;把…編入索引;[經濟學]按生活指數調整（工資、價格等）;
vi. [機械學]轉位;
in(in)+dex(proclaim)→指針；索引；指數；食指；指標
upgrade
[,?p'ɡred]
n. 向上的斜坡;
vt. 提升;使（機器、計算機系統等）升級;提高（設施、服務等的）檔次;提高（飛機乘客、旅館住客等）的待遇;
up向上+grade步，級→向上升級→上升，升級
??? 情景例句
How many words can you type per minute?
你一分鐘能打多少字？
Don't forget to put stamps on your letter.
別忘了貼郵票。
It was only possible for the Ombudsman to find this out by sending one of his representatives to check the facts.
司法特派員只有派他的代表去核對事實才能了解真相。