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1. Oxford American Dictionary

   lag screw

   • n.
     a heavy wood screw with a square or hexagonal head.
   • v.
     fasten with a lag screw.

   • verb: lag screw, 3rd person present: lag screws, gerund or present participle: lag screwing, past tense: lag screwed, past participle: lag screwed

   • noun: lag screw, plural noun: lag screws

2. • 釋義

   n.

   名詞

   • 1. a heavy wood screw with a square or hexagonal head.

   v.

   動詞

   • 1. fasten with a lag screw.