要不是你幫忙，我今天肯定完不成任務。
If it weren't for your help, I definitely wouldn't be able to finish the task today.
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Example sentences
難道你打算一個人去不成？
难道你打算一个人去不成？
Don't tell me you plan to go alone?
Usage Notes
Used at the end of a sentence to express speculation or emphasize a rhetorical question, often with 'nandao' (难道).
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