英语词汇“ball signal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ball signal
释义	ball signal noun : an object like a ball hoisted manually to the top of a track-side pole in early railroading to indicate that the way was clear for an approaching train — compare highball
随便看	double-o double octave double or nothing double or quits double oxer double paddle double-page spread double pair royal double paper double-park double pedal double pedal point double pedro double-pitch double play double plea double plow double pneumonia double point double-pole switch double ponceau R double-pored tapeworm double possessive double postal card double-precision

英语词典包含332784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。