形容詞：放在職稱前面
把「不說是哪段時間」搬到人的身分上：這個人跟這個職位有過關係，但沒有明講是什麼時候、或有多常。同一個留白的動作，一邊指向過去，一邊指向「不是全職」。
former · adjective · B2
former; used before a noun to say someone had a job or title in the past.
曾任的
核心畫面
Picture pointing at the calendar without landing on a square: there is a moment in there, you just are not saying which one. Sometime leaves the date blank on purpose — and when it sits in front of a job title, it leaves the years blank the same way.
可以想成：手指往月曆上一比，卻沒有真的落在哪一格。時間點是有的，只是你不說是哪一天。sometime 就是刻意把日期…更多收起
可以想成：手指往月曆上一比，卻沒有真的落在哪一格。時間點是有的，只是你不說是哪一天。sometime 就是刻意把日期留白；放在職稱前面時，留白的則是「那是什麼時候的事」。要注意它和 some time（一段時間）、sometimes（有時候）是三個不同的字。From the picture
Also in this word
at an unnamed time · r · A2
At a time in the past or future that you do not name.
某個時候
原始詞典資料5 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。
sometimeadv/ˈsʌmˌtaɪm/
- 1
At an indefinite but stated time in the past or future.
- I'll see you at the pub sometime this evening.
- This will certainly happen sometime in the future.
- 2
obsoleteSometimes.
- 3
obsoleteAt an unstated past or future time; once; formerly.
- Did they not sometime cry "All hail" to me?
sometimeadj/ˈsʌmˌtaɪm/
- 1
Former, erstwhile; at some previous time.
- my sometime friend and mentor
- Therefore our sometime sister, now our queen / Th' imperial jointress to this warlike state
- 2
Occasional; intermittent.
- an author and sometime lecturer
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。