dirty 
英 [ˈdɜːtɪ]  美 [ˈdɜrti] 
adv. 非常大的

v. 弄脏

adj. 肮脏的，下流的，卑鄙的，暗淡的

例句：
He wiped his dirty face with his arm. 

他抬起胳膊擦了把脏兮兮的脸。

She still did not like the woman who had dirty fingernails. 

她仍旧不喜欢那个指甲肮脏的女人。

Of course, the children are likely to get dirty when they play outdoors. 

当然，孩子们在室外玩的时候有可能弄得脏兮兮的。

If your tools get dirty, you should clean them before you put them away. 

如果工具脏了，应当先清理干净再收起来。