n.a baseball player on the team at bat who is on base (or attempting to reach a base)
同义词：runner
base runner例句
Combination runner and base Baserunner's Optimal Path Baserunner’s Optimal Path baserunner’s optimal path - Dr Michael Kerckhove Base Runner's Collision With Softball Catcher Results in Suit Maverick Base Runner BEST BASERUNNER Take off like a baserunner to poach Michigan base runner, Michigan Inv. 1991 VARIABILIDADE GENÉTICA DE ACESSOS DE AMENDOIM DO TIPO RUNNER COM BASE EM MARCADORES RAPD
