chorus  
 noun uk/ˈkɔː.rəs/ us/ˈkɔːr.əs/
  (SONG OR SONG PART)         
  [ C ](通常在歌曲每一节后的)副歌,合唱部分;合唱曲 
part of a song that is repeated several times, usually after each verse (= set of lines) 
  I'll sing the verses and I'd like you all to join in the chorus. 我唱独唱部分,我希望你们都加入合唱。 
 They burst into a chorus of (= they sang the song) Happy Birthday. 他们突然开始齐唱“祝你生日快乐”。 
  [ C ]合唱曲 
a piece of music written to be sung by a choir (= group of singers)
  The choir will be performing the Hallelujah Chorus at the concert. 唱诗班将在音乐会上演唱《哈利路亚大合唱》。 
   (SINGING GROUP)      
  [ C, + sing/pl verb ]合唱团,歌咏队 
a group of people who are trained to sing together
  He sings with the Los Angeles Gay Men's Chorus. 他在洛杉矶男同性恋合唱团演唱。 
   (THEATRE GROUP)        
  [ C, + sing/pl verb ]歌舞队;伴舞;伴唱 
a group of performers who, as a team, sing or dance in a show
  She quickly left the chorus for a starring role. 她很快离开歌舞队去出演一个主要角色。 
 a chorus girl 歌舞队女演员 
  [ S, + sing/pl verb ] literature specialized(古希腊戏剧中解释剧情的)歌队,合唱队 
a group of actors in ancient Greek plays who explained or gave opinions on what was happening in the play using music, poetry, and dance
   (SPEAKING TOGETHER)      
 [ C usually singular ]异口同声 
many people speaking together or saying a similar thing at the same time
  The newcomers added their voices to the chorus expressing delight at the result. 新来的人和大家一起为这个结果欢呼雀跃。 
 There was a chorus of disapproval/complaint/condemnation at his words (= everyone complained together). 大家一致反对/抱怨/谴责他说的话。 
 chorus       
verb [ T + speech ]  literary uk/ˈkɔː.rəs/ us/ˈkɔːr.əs/
 齐声说;异口同声地说
(of a group of people) to say similar things at the same time
  "Not now," the children chorused in unison, "we're watching TV." “现在不要,”孩子们齐声嚷道,“我们正在看电视。”