单词	slip switch
释义	slip switch noun : a crossing frog containing either one or two connecting tracks that serve as short turnouts Word History Etymology slip entry 1
随便看	boron trifluoride boronatrocalcite boronia boronias boronic borons Bororo bororoan bororos borosilicate borosilicate glass borosilicates Borotuke borotungstic acid borough borough English borough hall borough-holder boroughmonger boroughreeve boroughs borracha borrasca borrel Borrel's blue

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