SmarTrip is a contact-less stored-value smart card payment system managed by the Washington Metropolitan Area Transit Authority (WMATA). Unlike traditional paper farecards or bus passes, SmarTrip is designed to be permanent and reloadable.
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。