intransitive. To make a tunnel; to excavate a passage under ground, or through some body or substance.
| 单词 | θ210252 |
| 释义 | society > occupation and work > industry > earth-moving, etc. > [verb (intransitive)] > make tunnel (2) tunnel1795 intransitive. To make a tunnel; to excavate a passage under ground, or through some body or substance. Subcategories:— under English Channel (1) |
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