英语词汇working signal简单造句、意思、用法及例句-英语例句辞典

单词	working signal
例句	原声例句 NPR音讯 2012年11月合集 The National Transportation Safety Board's Mark Rosekind says the folk remained on the tracks, even though warning signals were working. 国家运输安全委员会的马克·罗斯金德称，事故发生时，人们都在花车上，但当时警示灯是亮着的。
随便看	topographically topographical map topographical maps topographic map topographic model topographic region topographic relief topographic survey topographies topography to point to point out Topolobampo topological topological insulator topological insulators topological invariant topological map topological phase transition topological properties topological property topological space topological spaces topological vector space topologies

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