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-现代词典

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	gospeler gospeler gospel for the day gospel hall gospelize gospeller gospel side gospel team gospel tree gospel truth gospodin gosport gossamer gossamer gossamer fern gossamer spider gossamery gossan gosshawk gossip gossiper gossipiness gossiping gossipingly gossipmonger

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