not at all 一、用于回答感謝,意為“不用謝；不客氣”.如：
A：Thank you very much．多謝你了.
B：Not at a11．不客氣.
A：Thanks for helping me．謝謝你幫助我.
B：Not at a11．I enjoyed it．別客氣,很高興能幫你.
A：Thank you very much．非常感謝你.
B：Not at a11．Il was the least I could do．不用謝,這是我應(yīng)該做的.
二、用于回答帶有感謝性質(zhì)的客套話(huà).意為“沒(méi)什么；哪里哪里”.如：
A：You are very kind．你真好.
B：Not at all .沒(méi)什么.
A：It''s very kind of you．你真客氣.
B：Not at a11．哪里哪里.
三、用于回答道歉,意為“沒(méi)關(guān)系”.如：
A：I''m sorry I''m late．對(duì)不起,我遲到了.
B：Oh,not at all,do come in．噢,沒(méi)關(guān)系,請(qǐng)進(jìn)來(lái).
A：I''m sorry to keep you waiting．對(duì)不起,讓你久等了.
B：Oh,not at a11．I''ve been here only a few minutes．哦,沒(méi)關(guān)系,我也剛到幾分鐘.
四、用來(lái)表示否定(是No的加強(qiáng)說(shuō)法),意為“一點(diǎn)也不：完全不”.如：
A：Are you busy?你忙嗎?
B：Not at a11．一點(diǎn)不忙.
A：Is it difficult to study English?英語(yǔ)難學(xué)嗎?
B：Not at a11．一點(diǎn)不難.
A：I’11 be away on a business trip．Would you mind looking after my cat?我要因公出差,
請(qǐng)幫我照看一下我的貓,你介意嗎?
B：Not at all.I’ll be happy to．一點(diǎn)不介意,我很樂(lè)意.
not…at all “ 一點(diǎn)也不…… ”,常用在否定句中,加強(qiáng)語(yǔ)氣.
eg：We don't speak English at all after class.在課下我們根本不講英語(yǔ).