大型活動的預演
同一件事搬出劇場：婚禮、典禮、演習也可以先完整走一次，把流程對清楚。
practice run · noun · B2
A time when people practise what they will do at an important coming event.
預演
核心畫面
Picture the run-through before the day that counts: everyone in place, going through the whole thing while mistakes are still free. Nothing here is the real event — its entire purpose is to make the real one go smoothly.
可以想成：正式那天之前的一次完整跑一遍——每個人各就各位，從頭走到尾，而這時候出錯還不用付代價。這一場本身不是正式的…更多收起
可以想成：正式那天之前的一次完整跑一遍——每個人各就各位，從頭走到尾，而這時候出錯還不用付代價。這一場本身不是正式的那一場，它存在的唯一理由，就是讓正式那一場順利。From the picture
Also in this word
practice for a show · noun · B2
A time when performers practise a play, concert, or dance before performing it publicly.
排練
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
rehearsalnoun/ɹɪˈhɝsl̩/
- 1
The practising of something which is to be performed before an audience, usually to test or improve the interaction between several participating people, or to allow technical adjustments with respect to staging to be done.
- After modifications had been effected by the builders, a rehearsal of electric operation was held on September 17. A complete day's timetable was run through and apparently all went well, except for insulator trouble with the overhead wires near Anniesland; a further rehearsal was held on the following Sunday.
- 2
A preparatory activity analogous to a rehearsal (sense 1).
- The forest fires are just a rehearsal for the devastation that will be caused if climate change continues to worsen.
- 3
The act of rehearsing or contriving something; the fact of something's being rehearsed.
- The prosecution argued that the defendant's exact repetition of his account of the events several times demonstrated the rehearsal of his story.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。