1.not necessarily 不一定
例句：But it is also not necessarily true.
当然这也并不一定就是真的。
2.not that exciting 没那么激动人心
例句：Wikipedia probably is not that exciting for Britannica.
维基百科对大英百科来说没有那么令人兴奋。
3.not think much of 对…估价不高，认为…不好
例句：I do not think much of apples.
我不太喜欢苹果。
4.not to have a dog's chance 一点儿机会也没有,没有任何可能
例句：Not to have a dog's chance, I will never win.
我绝没有可能赢。
5.not to mention 更不必说
例句：Not to mention, the battles can be epic.
不用说，这些战斗将成为史诗。
6.noted for 以…闻名，以…著称
例句：The cityhas long been noted for itscultural activities.
城市一向以它的文化活动著名。