单词	sand-in
释义	sand-in transitive verb : to use (abrasive paper) to curve the contact face of a dynamo brush to conform to the curvature of the commutator Word History Etymology sand entry 2
随便看	beam tube beam weapon beam well beam-ends beam-rider beamage beambird beamed beamer beamers beamfilling beamhouse beamier beamiest beamily beaming lingua geral lingua gerals lingua- linguae linguae francae linguaeform lingual lingualer lingualest

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