inhibitor for nitrification

例句：

1. 1.The bacteria that cause food poisoning are often found in contaminated water sources.
   引起食物中毒的细菌通常存在于受污染的水源中。
2. 2. The new drug is an inhibitor of the enzyme responsible for metabolizing drugs.
   这种新药是负责代谢药物的酶的抑制剂。
3. 3. The researchers discovered a new inhibitor that could potentially block cancer cell growth.
   研究人员发现了一种新的抑制剂，可能能够阻止癌细胞的生长。