lobby       
 verb [ I or T ] uk/ˈlɒb.i/ us/ˈlɑː.bi/
C2 游说,试图说服(政客、政府或官方团体)
to try to persuade a politician, the government, or an official group that a particular thing should or should not happen, or that a law should be changed
  Small businesses have lobbied hard for/against changes in the tax laws. 小公司极力游说支持/反对修改税法。 
 [ + to infinitive ] Local residents lobbied to have the factory shut down. 当地居民极力要求关闭该工厂。 
 [ + obj + to infinitive ] They have been lobbying Congress to change the legislation concerning guns. 他们一直在游说国会修改涉枪法律。 
 - More examples
 - They are lobbying for tax cuts.
 - We are lobbying for changes to the law on drinking and driving.
 - Farmers lobbied hard against the export bans.
 - They lobbied to have the head teacher removed.
 - They are lobbying for better healthcare facilities.
 
lobby  
noun [ C ] uk/ˈlɒb.i/ us/ˈlɑː.bi/
  (PRESSURE GROUP)      
  游说团体,游说集团
a group of people who try to persuade the government or an official group to do something
  the anti-smoking lobby 反吸烟游说团体 
   (ROOM)       
B2 大堂,大厅,门厅
the (large) room into which the main entrance door opens in a hotel or other large building
  (英国议会的)接见厅,会见厅,表决厅
in the UK parliament, a room where someone meets a member of parliament who they have arranged to talk to, or one of the two passages that members of parliament walk through as a way of voting