| 单词 | tunnel-shaft | 
| 释义 | > as lemmastunnel-shaft   tunnel-shaft  n. = tunnel-pit n. ΘΚΠ society > occupation and work > workplace > places where raw materials are extracted > mine > 			[noun]		 > shaft > sunk to level of tunnel tunnel-pit1828 tunnel-shaft1858 1858    P. L. Simmonds Dict. Trade Products  				Tunnel-shaft. < as lemmas | 
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