roast  
 verb uk/rəʊst/ us/roʊst/
  (COOK)        
 A2 [ T or I ]烘;烤;焙 
to cook food in an oven or over a fire
  Just roast the chicken in the oven and baste it in oil and lemon. 直接把鸡放在烤箱里烤,烤时涂上油和柠檬汁。 
figurative We lay on the beach and roasted (= got very hot) in the Mediterranean sun. 我们躺在地中海的沙滩上晒日光浴。 
  [ T or I ]烘焙(坚果或咖啡豆) 
to heat nuts or coffee beans so that they become drier and browner
 - More examples
 - I roasted the vegetables with some olive oil.
 - Have these red peppers been roasted?
 - Roast the lamb in a hot oven for 45 minutes.
 - I roasted a few nuts.
 - We roasted chestnuts on the open fire.
 
  (CRITICIZE)         
 [ T ] informal严厉批评;非难 
to criticize severely or speak angrily to someone
  Critics roasted him for exploiting racial stereotypes. 批评者抨击他利用了刻板的种族成见。 
  [ T ] mainly US, informal吐槽(名人) 
to humorously criticize and make jokes about a famous person at a public event honouring that person, as a part of the event
  He's known for roasting big-name celebrities on his Comedy Central shows. 他以在《喜剧中心》的节目上吐槽名人而出名。 
 roast       
 adjective [ before noun ] uk/rəʊst/ us/roʊst/ (also roasted)
A2 烘;烤;焙
Roast meat or vegetables have been cooked in an oven or over a fire
  roast beef/chicken/potatoes 烤牛肉/鸡/土豆 
 roasted red pepper sauce 烘焙的辣椒酱 
 roast  
noun [ C ] uk/rəʊst/ us/roʊst/
  (MEAT)     
  大块烤肉
a large piece of roasted meat
   (ENTERTAINMENT)      
 mainly US(对名人的)吐槽 
an event where a famous person has jokes and humorous criticisms made about them, for entertainment
  There will be a roast hosted by Bill Maher to mark Larry King's 50 years on radio and television.  比尔·梅尔将主持一场吐槽会,纪念拉里·金在广播电视界从业50周年。