mine·shaft 
(mīnshăft′)
(mīnshăft′)n.
A vertical or sloping passageway made in the earth for finding or mining ore and ventilating underground excavations.
| 单词 | mineshaft |
| 释义 | mine·shaft (mīnshăft′)n. A vertical or sloping passageway made in the earth for finding or mining ore and ventilating underground excavations. |
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