phosphor killer

例句：

1. 1. The phosphorus in the soil is a major factor affecting plant growth.
   土壤中的磷是影响植物生长的主要因素。
2. 2. The phosphorus killer effectively reduced the levels of phosphorus in the soil.
   磷杀手有效地降低了土壤中的磷含量。
3. 3. The use of phosphorus killers has been banned in many countries due to their potential environmental harm.
   由于潜在的环境危害，许多国家已经禁止使用磷杀手。