| 释义 | signal box noun[ C ]
 UKuk /ˈsɪɡ.nəl ˌbɒks/ us /ˈsɪɡ.nəl ˌbɑːks/(USsignal tower)
 a building from which railway signals are operated(铁路上的)信号房,信号楼
 SMART Vocabulary: related words and phrases
 Railways & railway lines
 aerial tram
 aerial tramway
 Amtrak
 artery
 branch line
 electrify
 funicular
 junction
 level crossing
 light railway
 metro
 railroad
 RR
 siding
 signal
 switch
 switchback
 track
 unelectrified
 whistle-stop
 
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