石头我知道，云鲸是哪个？今早刚下单了这个：Deal of the day: roborock Qrevo S Robot Vacuum and Mop, Self-Drying, Auto Mop Washing, 7000Pa Suction, Self-Emptying & Refilling, 10mm Mop Lifting, 200RPM Spinning Mops, Smart Obstacle Avoidance, White