all-black school的用法和样例：
例句
- In the days of the racial segregation, or a partyapartheid, black school children were not allowed to study music or creative subjects.
在种族隔离的那些日子里，黑人学校的学生不被允许学习音乐或是培养创造力的学科。 - Blacks were barred from voting, and their disfranchisement allowed white politicians to keep white schools white and black schools shabby.
由于黑人不能参选，白人政客便可以肆无忌惮的让白人学校始终窗明几净，而黑人学校却长年破烂不堪。
