他的手指伤口感染化脓了，必须尽快处理。

The cut on his finger became ___septic and needed urgent treatment.

医生立即处理伤口以防止它化脓感染。

The doctor treated the wound immediately to prevent it from becoming ___septic.

我们的度假屋安装了化粪池系统来处理废水。

Our vacation home uses a ___septic system to treat wastewater.