an insignia worn to indicate years of service
同义词：hashmark??/??hash mark
The question service providers of all stripes must ask is: Is my service good enough to sell?
FORBES: The Next Big Product to Become Obsolete
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。