1. Recently, one research institute found that nearly 4.4 million students were enrolled in some 50,000 to 60,000 jukus. That represents 18.6 percent of elementary school children and 52.2 percent of students in seventh through ninth grades.
    最近，有一家研究机构发现，大约有440万名学生就读于5至6万所课外学校。他们占了所有小学生的18.6%，七至九年级学生的52.2%。