农民们不得不对田里的害虫进行全面消灭以保护庄稼。

The farmers had to carry out the ___extermination of pests in the fields to protect their crops.

为了防止疾病传播，政府下令对受感染地区的蚊子进行灭杀。

To prevent disease spread, the government ordered the ___extermination of mosquitoes in the infected area.

我们的餐厅需要专业的虫害防治服务来确保食品安全。

Our restaurant needs professional ___extermination services to ensure food safety.