representation  
noun uk/ˌrep.rɪ.zenˈteɪ.ʃən/ us/ˌrep.rɪ.zenˈteɪ.ʃən/
  (ACTING FOR)      
 C2 [ U ]作为…的代表(或代理人);作为…的代言人 
a person or organization that speaks, acts, or is present officially for someone else
  Can he afford legal representation? 他请得起律师吗? 
 - More examples
- Defendants have a right to legal representation and must be informed of that right when they are arrested.
- The farmers demanded greater representation in parliament.
- The main opposing parties have nearly equal representation in the legislature.
- The scheme is intended to increase representation of minority groups.
- The members are chosen by a system of proportional representation.
  (DESCRIPTION)         
C2 [ U ]表现;展现;描绘;描述 
the way that someone or something is shown or described
  He gave a talk on the representation of women in 19th-century art. 他作了一个演讲,是关于19世纪艺术中女性形象塑造的。 
  [ C ]表示;象征;代表 
a sign, picture, model, etc. of something
  This statue is a representation of Hercules. 这是一座大力神的雕像。 
 Idiom   
make representations/a representation to someone/somethingidiom  formal (正式)向…投诉,向…抗议
to complain officially to a person or organization
  We made representations to the boss about the long working hours. 我们就工作时间过长一事向老板提出抗议。