走塁

1. Origins, structure, and basic meaning

• Structure: 走塁 (そうるい) means base running in baseball. 走塁の練習 names a training category; 走塁が得点につながる makes the play a cause of scoring.
• Basic usage: A player develops judgment through base-running practice, and aggressive base running later leads to a run.

2. Common pitfalls and similar expressions

• Skill practiced and play producing a score
  • 走塁 is baseball-specific rather than ordinary running. の classifies the practice, while が marks the play that produces a result.