| 单词 | ghost train | 
| 释义 | Word Frequency ghost train(ɡəʊst treɪn) noun 1.  a small train at an amusement park that travels through a dark tunnel in which sounds, lights, and mechanized objects are used to scare the people in the train 2.  railways a train run during the night in order to keep railways clear of snow and ice   Network Rail had ghost trains - empty trains used to keep lines free of snow andice - running throughout the night.  | 
	
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