a.

1. 脏的，污秽的
   His mother scolded him for getting his clothes dirty.

   他妈妈因他弄脏了衣服而责骂他。

2. 猥亵的，下流的
   They were drinking and telling dirty jokes.

   他们一边喝酒，一边说黄色笑话。

3. 【口】恶劣的（天气）
   They refused to go on a picnic on such a dirty day.

   他们拒绝在这种恶劣的天气去野餐。

4. 卑鄙的；居心不良的（眼光）
   Those are dirty deeds.

   那些是卑鄙的行为。

5. 色彩暗淡的
6. 辐射尘量高的

vt.

1. 弄脏
   The children dirtied the floor.

   孩子们把地板弄脏了。

   You'll dirty your hands if you play in the dirt.

   如果你去玩泥巴，手会弄脏。

vi.

1. 变脏

adj.

1. covered or marked with a substance that causes a mark, stain, or contamination; not clean.
   ▸(of a nuclear weapon) producing considerable radioactive fallout.
2. lewd; obscene.
3. dishonest; dishonourable.
4. (of weather) rough and stormy.

adv.

v.