rate of spoiled

例句：

1. 1. The food was rated at a high level of spoiled.
   这食物被评定为高等级的腐烂。
2. 2.The spoiled rate is increasing due to the increase in temperature.
   由于温度的增加，腐烂率正在增加。
3. 3. The spoiled rate has been reduced by implementing stricter waste management policies.
   通过实施更严格的废物管理政策，腐烂率已经降低。