Olympic Idioms  奧林匹克慣用語

perfect 10
滿分；十分優異

Explanation: Many competitions in the Olympics, particularly gymnastics, are scored by a panel of judges on a 1-10 scale.  A performance the receives a '10' is considered perfect.  This idiom can be used to refer to someone's execution of a task.

e.g.  May's presentation to the class was a perfect 10.
       梅在班上的表現十分優異。