Grammar is conjunctive; as object, determiner; referring to uncivilized words. Such as as citizens of the new era, we can't speak filthy words. Near-synonyms include unpleasant, dirty, filthy words; antonyms include golden words, sweet words.
The meaning of obscenity is the meaning of dirty words, and the meaning of different not to plan is that I have different opinions with you and can't plan for you. jingrui