厨房的地板是最脏的，上面粘满了油渍和食物残渣。

The kitchen floor is the ___dirtiest, covered with grease and food crumbs.

他用了最卑鄙的手段来陷害竞争对手。

He used the ___dirtiest tricks to frame his rival.

那场比赛里对手用了最卑鄙的手段来赢得胜利。

The opponent used the ___dirtiest tactic to win that match.

那部电影里有最粗俗的台词，不适合孩子观看。

That movie has the ___dirtiest dialogue and isn't suitable for kids.