play a role

例句:

• Sedimentation and denudation play a role in exceptional cases.
  沉积和剥蚀作用的影响只在特殊情况下起作用.
  
• MS. MINOW: CFOs play a really crucial role.
  来自WSJ
• She would only play a role if she could identify with the character.
  她只愿扮演她能认同的角色。
  
• Hitchhiking effects also play a role in experiments with marker genes.
  附加效应在以标记基因作试验中也是起作用的.
  
• Could he play a role in Haiti going forward?
  来自NEWYORKER
• Equally, the Government has a role to play.
  来自THETIMES