以上来源于: WordNet
Dunno is sometimes used in written English to represent an informal way of saying "don't know." 不知道 (有时用于书面语表示非正式说法)
"How on earth did she get it?"—"I dunno."
“她究竟是如何弄到它的？”—“我不知道。”
《柯林斯英汉双解大词典》
I dunno. I think they speak Mandarin.
不知道。我觉得他们应该说中文。
youdao
Remy: you dunno... and you're eating it?
雷米：你不知……那你还吃？
We dunno, but we're definitely going to find out for you exactly what we can expect.
ENGADGET: & Joystiq's live coverage of Microsoft's Xbox 360 E3 event
Why would I buy this instead of just, I dunno, picking up a TiVo for half a small?
ENGADGET: Switched On: Enter the lay tricks
In such cases, cease and desist with the heart attack-inducing displays on impatience and, I dunno, meditate or something?
CNN: How to kill time without your phone
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