男孩的夢想
Sebastian Vettel explains F1 KERS and DRS - YouTube 很想問這弟弟哪裡買的!?http://www.f1fanatic.co.uk/2011/03/14... Sebastian Vettel explains the Kinetic Energy Recovery System (KERS) and Drag Reductions System (adjustable rear wing) that will be used in F1 this year....
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