All use and no cleaning makes brushes traps for bacteria. Bacteria can enter through a blemish or scratch.
只用不洗会使刷子变成细菌的温床。细菌会进入伤口或擦伤处。
Sue: he does sometimes, yes, yes. If I scratch him or Matthew brushes him with a little toothbrush, he grooms with his teeth so…
苏：它有时候会的。如果我给它搔痒或者马修用小牙刷给它梳理，它就会用牙齿来梳洗……
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