dirty
单词辨析：
最普通用词，指不干净的、沾满污物的。
Your hands are dirty.
你的手脏兮兮的。
The man in a dirty coat is a miner.
那个穿着一件脏外套的人是个矿工。
指某处满是灰尘或尘土飞扬的。
a dusty street
满是灰尘的街道
Clean the dusty windows before you move out.
搬出去之前把灰尘覆盖的窗户擦干净。
指由于东西腐烂、发出恶臭等而污浊不堪的。
a foul pond
发出恶臭的池塘
The foul air in the tunnel almost suffocated him.
隧道里的污浊空气差点让他窒息而亡。
相关例句：
He was always trying it on. But now he's 71, it's causing problems. He's just a dirty old man.
他以前总想乱来。但现在他已71岁，有些力不从心了。不过是个老色鬼罢了。
Oh my! The picture's got dirty!
哎呀，这张画怎么弄脏了？
Michael gave him a dirty look and walked out.
迈克尔狠狠地瞪了他一眼然后走开了。
They sat at a Formica table cluttered with dirty tea cups.
他们坐在铺有福米加塑料贴面的餐桌前，桌上凌乱地堆着用过的茶杯。
He was afraid the dog's hairs might dirty the seats
他担心狗毛弄脏了座位。
Leftover food and unwashed dishes cover the dirty counters.
台面上又脏又乱，尽是残羹剩菜和未洗的盘子。