Picture the person at the side of the pool or in the passenger seat, breaking a skill into steps and watching you try each one. The word points at a teaching role defined by hands-on training rather than by a subject on a — which is also why American colleges use it as the name of a junior teaching post.
可以想成：泳池邊或副駕駛座上的那個人，把一項本事拆成步驟，然後看著你一步一步做。instructor 指的是這種「帶著你動手」的教學角色，不是課表上教某一科的老師——美國大學也用這個字當作一個較初階的教學職稱。
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，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。
instructornoun/ɪnˈstɹʌktɚ/
- 1
One who instructs; a teacher.
- According to the National Centre for Education Statistics' most recent numbers (2012), 50% of instructors at degree-granting institutions in the US are part-time. […] Through teaching as an adjunct instructor while still a graduate student, I've had the luxury of developing my career: testing out teaching strategies, exploring innovative courses, and developing relationships with students – all while working on my dissertation.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。