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Наука и техника
，更多细节参见PG官网
Downsides: Light manual upkeep is needed every few daysThe PetSafe ScoopFree litter box doesn't mask the smell as well as a Litter-Robot and its filter do. So while my Litter-Robot is pretty much odorless and hands off until the drawer needs to be emptied, my ScoopFree requires a light refresh every few days between tray changes to keep it from stinking.
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"goldValue": "dice(1d4+1)",
Анжелика Бережная (Редактор)，详情可参考新闻