| 单词 | free spool |
| 释义 | free spool1 of 2noun : the spool of a fishing reel equipped with a device that allows the spool to revolve without any tension on the line (as in the process of casting or trolling) free-spool 2 of 2transitive verb : to set a device controlling the free spool of (a fishing reel) to permit the line to unreel without tension |
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