| 摘要 |
A rolling toy includes a chassis, an electric power source attached to the chassis, a remote signal receiver, an electric motor attached to the chassis and receiving power from the power source in response to a signal received by the remote signal receiver, a pair of riding surface-engaging wheels mounted co-axially to the chassis and capable of rotating independently of one another, and wherein at least one of the wheels is driven to rotate by the electric motor, and a dome-shaped profile formed on each wheel and adapted to bear upon the riding surface to assist in righting the toy, should it topple in use.
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