( )( )know(s)that noise is a kind of pollution,( )( ).

问题描述:

( )( )know(s)that noise is a kind of pollution,( )( ).
意思为不是每个人都知道噪音也是一种污染,这四个空怎么填呀
后面还有两个空 ok 最后标点是句号

(Not) (everyone) knows that noise is a kind of pollution,(unfortunately) (indeed).
并不是每个人都知道噪音也是一种污染,很不幸地
或者最后两个空格试着填:franky speaking,老实地说