dirty的比较级和最高级分别是:
dirtier；dirtiest
例如:
1、Our cities will continue to become more crowded and noisome.The landscape will get more cluttered, the air and water even dirtier.
城市将继续变得更为拥挤喧器，景色将更为杂乱，空气和水更脏。
The river gets dirtier and dirtier.
河水变得越来越脏。
2、 This is one of the reasons why it's called the world's dirtiest oil.
这正是它被称为世上最脏油类的原因之一。
Many people think that the pig is the dirtiest animal in the world.
很多人认为猪是世界上最脏的动物。
dirty的比较级和最高级是dirtier和dirtiest。
adj.肮脏的;龌龊的;污秽的;下流的;色情的;黄色的;猥亵的;令人厌恶的;卑鄙的;不诚实的;
The children left dirty marks all over the kitchen floor.
孩子们把厨房的地板弄得污渍斑斑。
