line of segragation

例句：

1. 1.The school had to segregate its students by race.
   学校不得不根据种族将学生分开。
2. 2.The government's decision to segregate the schools has sparked controversy.
   政府决定将学校分开的决定引发了争议。
3. 3.The segregationist movement sought to maintain racial boundaries.
   隔离主义者运动寻求维持种族界限。