Maria Darrosa, 29, of 21 Brentwood Road, Bay Shore, was sentenced to 6-12 years in prison yesterday for first-degree sodomy.  Darrosa was caught on videotape last year sexually abusing a Rockville Centre toddler in her charge while babysitting.  She apologized for the crime to which she pleaded guilty in September.  She could have faced up to 25 years in prison if convicted by a jury according to Assistant District Attorney Kyle Rose.  After the child's parents had been warned by another babysitter last December that Darrosa was yelling at their daughter in a public park, they planted a miniature video camera in a playroom cabinet.  When they viewed the tape, they watched in horror as Darrosa forced the 2 year old to touch her genitalia and perform oral sodomy on her.