名词
中文翻译：投球线速度
同义词：
['pitch line velocity', 'pitch line speed']
例句：
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1.The baseball team needs to improve their pitch-line speed for better performance.
棒球队需要提高投球线速度以获得更好的表现。
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2.The fastball is the fastest pitch in the game and requires a high pitch-line speed.
快速球是比赛中最快的球，需要高投球线速度。
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3.The pitcher needs to maintain a consistent pitch-line speed to avoid giving up too many hits.
投手需要保持一致的投球线速度以避免过多失分。