请不要购买这款手机..屏幕太暗淡，非常重要。不提供退款服务，最好加点钱买其他手机。####[['购买这款手机', 'Buyer Attitude#Recommendable', 'negative'], ['屏幕', 'Screen#General', 'negative'], ['提供退款服务', 'After-sales Service#Exchange/Warranty/Return', 'negative']]