no big deal vs. not a big deal

no big deal vs. not a big deal

辨析：两者的意思一样，都是很口语化的“没什么大不了”，形容某问题的严重性并不高，也有安慰人的用意在内。注意这两个表达的杂糅形式不是正确的用法。

例句：
If you mess up, no big deal. Just go and do it on the next play.
I think there'll be a small deal on budget issues, but not a big deal on the long-term entitlement crisis of the country.