sumi<日> n.(书法和绘画用的)烟灰墨(块)
sumn.金额;总数;要点v.概括;总结;归纳;总计
summarization and simplicity概括与简化
sum efficiency extrapolation相加效率外推
summaries and recommendations总结和建议
Sum withdrawn from an account从帐户中提取的款项
sum of squares between groups组间平方和
summarization of disquisitions研究综述
sum-of-the-year-digits(美国租赁业一种折旧法) 数字总和法