单词	home signal
释义	home signal noun : a railroad signal placed at the beginning of a block to indicate whether or not the block is clear compare distant signal Word History First Known Use 1867, in the meaning defined above
随便看	traded down traded for traded in traded on traded up tradeful tradeless trademark trademark infringement trademarked trademarking trademarks tradenames tradeoffs trader traders tradership trades trades (for) trades (in) trades council trades down trades for trades in trades on

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。