The rivers will become dirtier and dirtier _______ we take a

the rivers will become dirtier and dirtier --- we take actio the air is becoming dirtier and dirtier because people are p What will become dirtier when you wash it?中文是什麼意思? if there is （） pollution,ourcity will be （）dirtier. What will be come dirtier when people wash it The dirtier the water,the more ____the illness. 说明理由 1._______ we use comes from the rivers,lakes and the at Buses are also dirtier and more crowded 为什么不用比较级,比较级不是要加than 举几个英语例子①dirty——dirtier——the dirties------------------------- 翻译：Most experts think that the keyboard is much dirtier than I have never seen a dirtier room t____ this one!you need to Then we fished in the rivers and（ ） the fish over the fire A