- 1（口語）不知道、我哪知（寫成 dunno，是 don't know 的口語音）
Dunno is a written way of showing the slack, fast sound of “I don’t know.” You hear it constantly in speech; you see it in messages, comics, and dialogue, not in a school essay or a careful letter. Some people mark it as “not correct English,” meaning: do not use it when you need to sound careful. Though actually, native speakers of every age say it. It can sound lazy, or friendly and shrugging, depending on the voice. It also works as a full little answer: “Where’s Mum?” — “Dunno.” It is not a new word with its own meaning; it is don’t know with the sounds crushed together.
From the word’s history
Written form of an informal pronunciation of don't know.
把 don't know「不知道」的口語唸法直接寫出來。
組成A written form of an informal pronunciation of don’t know, itself a shortening of do not know or does not know.
原始詞典資料2 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。
dunnonoun/ˈdʌnəʊ/
- 1
An utterance of the word dunno.
這個拼法也被記錄為下列字的變化形：
- do not know
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。