black mold

例句：

1. 1.The mold on the wall is a sign of dampness.
   墙上的霉斑是潮湿的迹象。
2. 2.The mold in the basement was causing health problems for the residents.
   地下室里的霉菌正在给居民的健康带来问题。
3. 3. The mold growth is a result of poor ventilation in the kitchen.
   厨房通风不良导致了霉菌生长。