Eng: This is not

這不是壞事

This is not a bad thing

這可不是什麼好事

This is not a good thing

這是不可以的

This is not allowed

這很不妙

This is not good

這不僅

This is not only

可不是這麼回事了

This is not the case

還不是第一次

This is not the first time

這並不是說

This is not to say that

這不是說一個觀點總是更好

This is not to say that one view is always better