核心畫面
Picture two beds, two desks, one door: the other person who lives inside the same living space as you. The word is built out of room + mate — 'the person you share the room with' — and everything it means comes from how big that shared space is taken to be.
可以想成：兩張床、兩張書桌、一道門——和你共用同一個居住空間的那個人。這個字就是 room（房間）加 mate（同伴…更多收起
可以想成：兩張床、兩張書桌、一道門——和你共用同一個居住空間的那個人。這個字就是 room（房間）加 mate（同伴）拼起來的，字面就是「跟你共用房間的人」。它的兩個用法差別只在一件事：那個「共用的空間」被算多大——是同一個房間，還是同一間公寓。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。
roommatenoun/ˈɹu(m)ˌmeɪt/
- 1
A person with whom one shares a room, as in a dormitory, barracks, rooming house, or apartment.
- 2
A person sharing the same home albeit not the same room (but generally not a family member or spouse).
- I live with Marsha. We’re roommates.
- 3
A same-sex significant other with whom one lives; a coinhabitant in a non-heterosexual relationship.
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。