As a result of discrimination, segregation from society, economic marginalization and lack of participation in social, political and economic decision-making processes, this substantial group has often been left out of development.
由于歧视、受到社会孤立、经济地位边缘化以及很少参与社会、政治和经济决策进程，这一人数很多的群体往往为发展所忽略。