A controller qustion

Hi,
   I define tow methods in my controller:
      def revise = {
            def item
             // blah blah
}
   def check = {
            def item
             // blah blah
}
When I compile the code I got the exception: The current
scope already contains a variable of the name item.
Dose it mean I can not define a local variable which is accessible within the method

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爱生活，爱FOX