mould in the pit

例句：

1. 1. The food was spoiled by the mould on the surface.
   食物被表面的霉菌弄坏了。
2. 2. The old book had a lot of mould on it.
   那本旧书有很多霉菌。
3. 3. The mold in the basement is causing a health hazard.
   地下室里的霉菌正在造成健康危害。