核心畫面
Think of a warning sign on a building: something about this place or thing can hurt you. Whatever safe means — nothing here will harm you — unsafe simply takes that away. The danger does not have to be certain, only real enough that a careful person would not go in.
可以想成一塊掛在門口的警告牌：這個地方、這個東西，有可能傷到人。safe 的意思是「不會有事」，前面加了 un- 就…更多收起
可以想成一塊掛在門口的警告牌：這個地方、這個東西，有可能傷到人。safe 的意思是「不會有事」，前面加了 un- 就把那份保證整個抽掉。它不必然表示一定會出事，而是說危險是真實存在的，謹慎的人不會就這樣走進去。原始詞典資料2 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。
unsafeadj詞源 1/ʌnˈseɪf/
- 1
Not safe (various senses); dangerous.
- For much the same reasons that safe languages are preferred over unsafe languages, these powerful---but unsafe---capabilities in Java should be restricted.
- "RMT has made it clear that our members have a right to refuse to work in unsafe conditions, and the union will be closely monitoring the situation. [...]"
unsafeverb詞源 2/ʌnˈseɪf/
- 1
To remove the safety from (a weapon).
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。