monolingualism

例句：

1. 1. The monolingualism of the country is a significant factor in its economic development.
   该国的单语主义是其经济发展的一个显著因素。
2. 2.The monolingualism of the school makes it difficult for students to communicate with each other.
   学校的单语主义使学生们难以相互交流。
3. 3.The monolingualism of the region has led to a lack of cultural diversity.
   该地区的单语主义导致了文化多样性的缺乏。