septentrionaline

例句：

1. 1. The septic tank is the first part of a wastewater treatment system.
   化粪池是废水处理系统的第一阶段。
2. 2. The septic tank is responsible for treating wastewater before it reaches the drain field.
   化粪池负责在污水到达排水区之前处理污水。
3. 3. The septic tank is an essential component of any wastewater treatment system.
   化粪池是任何废水处理系统必不可少的组成部分。