Unverified80% confidenceFactTime unknown
铁质/镀层铃铛在潮湿环境或宠物口水浸润下1-3个月即可能生锈导致铃舌卡死失声，纯铜和不锈钢材质使用寿命可达数年不失声
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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