jug      
noun uk/dʒʌɡ/ us/dʒʌɡ/
  (CONTAINER)            
 B1 [ C ] UK (US pitcher)(带柄及顶部有开口的)壶,罐 
a container for holding liquids that has a handle and a shaped opening at the top for pouring
  a glass/plastic jug 玻璃/塑料壶 
 a milk/water jug 奶/水壶 
  [ C ] US (UK pitcher)(带柄及顶部有狭窄开口的)大罐 
a large, round container for liquids that has a flat base, a handle, and a very narrow raised opening at the top for pouring
  a whiskey jug 威士忌酒罐 
  [ C ]一大罐的容量;一壶的容量 
the amount of liquid that a jug holds
  a jug of milk 一罐牛奶 
 - More examples
 - This jug holds exactly one pint.
 - The milk overflowed when I poured it into the jug.
 - She filled the jug up with cream.
 - He filled the jug to the brim.
 
  (PRISON)      
 [ U ] UK old-fashioned slang监狱,牢房 
prison
  I always knew he'd end up in (the) jug. 我就知道他最后会坐牢的。 
 jugful
noun [ C ] uk/ˈdʒʌɡ.fʊl/ us/ˈdʒʌɡ.fʊl/
 一大罐的容量;一壶的容量
the amount held by a jug
  There was a jugful of water on each table. 每个桌子上都有一罐水。