make a difference between 区别对待
 
make a difference to 使...产生变化
 
have difficulty in doing sth. 做某事有困难
 
draw a clear distinction between 分清
 
come into effect 生效，实施
 
put into effect 实行，使生效，使起作用
 
take effect 生效，起作用
 
put emphasis on/upon 着重于，把重点放在
 
make one's entrance 进入
 
make an error 犯错误