画一个刷柄的形状，并用黑色填满。

Draw the shape of a brush handle and fill with black.

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刷牙前，只要推动刷柄头牙膏就出来了。

Just twist the grip to push up the toothpaste before you brush your teeth.

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还示出将该刷单元设计用于手动牙刷刷柄。

The brush unit design is also shown applied to a manual toothbrush handle.

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还示出将该刷单元设计用于手动牙刷刷柄。

The brush unit design is also shown applied to a manual toothbrush handle.

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