| 摘要 |
A device for training cats to go on a toilet has a plurality of containers each having a hollow for accommodating a material onto which a cat urinate or defecate, the containers being inserted into one another so as to form an upper surface on which a cat can stand or sit, the containers being removable from one another so as to expose a throughgoing opening through which a cat can urinate or defecate, the containers being removable independently from one another so as to gradually expose throughgoing openings of different cross-sectional areas.
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