有關backfield的精選大全

用backfield造句子,“backfield”造句
(football)apersonwhoplaysinthebackfield.Thebackfieldplayerwhosepositionisbehindthelineofscrimmageandwhousuallycallsthesignalsfortheplays.thepositionofthefootballplayerinthebackfieldwhodirectstheoffens...
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