該注意而沒注意（出事）
空位落在「做事的準確度」上：沒盯著，東西就壞了、算錯了、別人跟著遭殃。
not paying enough attention · adjective · B1
not giving enough attention to what you are doing, so that you make mistakes, break things, or cause trouble for other people.
粗心的；不小心的
核心畫面
The gap where attention should have been. Care is what you add to an action to keep it safe and right — the second look, the steadier hand, the thought before you speak. This word names the state of that addition being absent. The action is complete; only the watching is missing. Whether that reads as damage, as ease, or as nerve depends on what was being watched.
「本來該有注意力的那個空位」。care 是你加在一個動作上、讓它安全又到位的東西——再看一眼、手再穩一點、開口前先想…更多收起
「本來該有注意力的那個空位」。care 是你加在一個動作上、讓它安全又到位的東西——再看一眼、手再穩一點、開口前先想一下。這個字說的就是那個「加上去的東西不在」的狀態：動作是完整的，缺的只是盯著它的那份心。缺席看起來是災難、是輕鬆、還是膽子大，要看被放掉的是什麼。Three branches
不刻意（顯得自然）
同一個空位，換到「事前的設計與經營」上：因為沒有安排過的痕跡，動作反而顯得輕鬆、渾然天成。
natural and unplanned · adjective · C1
done in a natural, easy way, without any effort and without thinking about it first.
隨意的；不經意的
不放在心上（不怕）
空位這次落在心上：不是沒看見危險或別人的眼光，而是看見了也不覺得需要放進來考慮。
unconcerned; unbothered · adjective · B2
not caring or worrying about something, such as danger, the weather, or what other people think.
不在乎的；不放在心上
原始詞典資料1 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。
carelessnessnoun/ˈkɛɹləsnəs/
- 1
Lack of care; the state or quality of being careless.
- This accident was caused by carelessness.
- There were, however, 34 deaths among passengers in movement accidents, due mainly to misadventure and carelessness when entering and leaving trains in motion, falling off platforms and out of carriages, and opening and closing carriage doors.
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。