biofilms的用法和样例：
例句
- Microbial mats and biofilms are two representative microbial communities functioning in bioremediation.
生物毯和生物膜是在生物修复中具有代表性的两种微生物群落的机能。 - While bacterial cells tend to be rather solitary individuals, they are also known to form intricately structured communities called biofilms.
虽然细菌细胞往往是孤立的个体存在，它们也清楚如何形成复杂结构的群落，我们称为生物膜。
