泉水上部的石块被绿色生物膜覆盖，它通过阳光和硫化物自然的发生化学反应生存。
The top of the springs' rocks are covered with green biofilms, which use both sunlight and sulfide-naturally occurring chemicals from the springs-to survive.
大量生物化学变化把他们的细胞粘贴在一起，形成一层胶状的生物膜，这层膜即使是烈性的混合抗生素也难以攻克。
A host of biochemical changes sticks the population of cells together, forming a gluey biofilm that even a potent cocktail of antibiotics struggles to shift.
和一些化学物质一样，高温也能够破坏生物膜，但在这两种方法都不安全。
High temperatures can destroy biofilms, as can some chemicals, but neither approach is safe to use inside the delicate interior of a human tooth.
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