发臭气

例句：

1. 1. The foodwas foul after it sat out for toolong.
   食物放久了就变坏了。
2. 2. Thesmell of the garbage is foul in thisneighborhood.
   这个街区的垃圾臭味很浓。
3. 3.The old wine has a foul taste thatno one likes.
   这瓶老酒味道不好，没人喜欢。