?学生比
... 学生罢课 students strike 学生比 student's ratio 学生成绩报告单 report card ...
During his campaign, he often noted Somerville's low student-to-teacher ratio.
CNN: Candidate Profile from Congressional Quarterly
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。