18,700 secondary vocational schools of various grades and types with 9.125 million students,a 39.8 percent increase over the 1990 figure.是什么意思_18,700 secondary vocational schools of various grades and types with 9.125 million students,a 39.8 percent increase over the 1990 figure.在线翻译_英语_读音_用法_例句