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《让孩子着迷的77X2个经典科学游戏》快乐导航:咦!水壶自己浮在半空中?鸡蛋居然悬在杯沿上?水里的光束会自动拐弯?用钟表也能测出方位……这些看似神奇的科学游戏,其实根
“Let kids fascinated 77X2 classic science game” Happy Navigation: 咦! Kettle floating in mid-air itself? Eggs actually hanging in the cup along the water beam will automatically bend? Like a magical science game, actually root