硬一会就软了怎么回事

{"name":"\u786c\u4e00\u4f1a\u5c31\u8f6f\u4e86\u600e\u4e48\u56de\u4e8b","type":"\u76ca\u667a\u7247","area":"\u5927\u9646","year":"2017","lang":"\u6cf0\u8bed","play":"BD\u9ad8\u6e05","type1":"\u76ca\u667a\u7247"}