| 单词 | unbolt |
| 释义 | unbolt /un bohlt"/, v.t. 1. to open (a door, window, etc.) by or as if by removing a bolt; unlock; unfasten. 2. to release, as by the removal of threaded bolts: He unscrewed the nuts and unbolted the inspection cover. v.i. 3. to become unbolted or unfastened. [1425-75; late ME; see UN-2 + BOLT1] |
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