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	brick veneer brick wall brick walls brick-and-mor brick-and-mortar brick-nogged brickbat brickbats bricked bricked up Brickellia brickelliae brickellias bricker brickest brickfield brickfielder brickfields brickie brickier brickies brickiest bricking bricking up brickings

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