缺勤率
But identifying exactly which students were absent revealed a kindergarten chronic absentee rate of 43 percent in 2010-11, meaning four of every 10 students missed at least 18 days.
WSJ: Districts find youngest students among most absent
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。