scheme          
 noun [ C ] uk/skiːm/ us/skiːm/
 阴谋,诡计
an organized plan for doing something, especially something dishonest or illegal that will bring a good result for you
  He has a hare-brained/crazy scheme for getting rich before he's 20. 他有一个轻率的/疯狂的计划,让自己在20岁前致富。 
 B2 mainly UK方案,计划 
an officially organized plan or system
  Under the current marking/mark scheme, you need 90 percent to get an A. 在现在的评卷系统下,你必须有90分才能得A。 
 a training/housing/play scheme 培训/住房/娱乐活动方案 
 a pension/savings scheme 养老金/储蓄金计划 
 There's a new scheme in our town for recycling plastic bottles. 我们镇上有一个回收利用塑料瓶的新计划。 
 Class sizes will increase under the new scheme. 按照新的设计,班级规模将扩大。 
 - More examples
 - The scheme is simple and cheap to operate.
 - She's come up with some amazing scheme to double her income.
 - The scheme was launched a year ago.
 - a management training scheme
 - The scheme is devised for young people in the 15 - 20 age band.
 
Idiom   
the scheme of thingsidiom  格局;安排
the way things are organized or happen in a particular situation, or the way someone wants them to be organized
  I was disappointed not to get the job, but it's not that important in the great/grand scheme of things (= when all things are considered). 我没有得到那份工作,很是失望,但从全盘考虑,这并不那么重要。 
 scheme       
verb [ I or T ]  disapproving uk/skiːm/ us/skiːm/
 密谋,策划
to make clever, secret plans that often deceive others
  All her assistants were scheming against her. 她所有的助手都在密谋反对她。 
 [ + to infinitive ] For months he had been scheming to prevent her from getting the top job. 数月以来,他一直在密谋阻止她得到这个最高职位。