资料来源 : Webster's Revised Unabridged Dictionary (1913)

Lock \Lock\, v. i.
   To become fast, as by means of a lock or by interlacing; as,
   the door locks close.

         When it locked none might through it pass. --Spenser.

   {To lock into}, to fit or slide into; as, they lock into each
      other. --Boyle.