toy y duck 玩具鸭子
Plush duck toy 3D model 毛绒鸭玩具3D模型
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Also, there are small metal water sensors on the underside of the toy that make the light inside the duck turn on when the duck is placed in water.
玩具的底部还有小的金属液体传感器，当小鸭放在水上时时鸭内的灯会打开。
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Another does it with a toy duck's bill.
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