ham  
 noun uk/hæm/ us/hæm/
  (MEAT)     
 A2 [ C or U ]火腿 
pig's meat from the leg or shoulder, preserved with salt or smoke
 - More examples
 - The ham was studded with cloves.
 - I'd like a ham sandwich on rye, hold the lettuce.
 - Would you like another slice of ham?
 - The meat produced from a pig is called pork, bacon or ham.
 - "More ham, Mr Fletcher?" "No thank you - it was delicious, but I've had a sufficiency ."
 
  (ACTOR)      
  [ C ] informal(风格做作老套且表演过火的)拙劣演员 
an actor whose style of acting is artificial and old-fashioned, often using movements and emotions that are too obvious
  They had some dreadful old ham in the main part. 他们起用了一些极为蹩脚的老演员担纲主角。 
 a ham actor 蹩脚的演员 
   (RADIO)      
 [ C ]业余无线电台操作人员 
a person who operates a radio station as a hobby rather than as a job
  He's a radio ham. 他是个业余无线电台操作人员。