名词
中文翻译：投球工具
同义词：
["投球机，投球器例句：1. The pitching tool is used to throw the ball into the batter's hand.（投球工具用于将球投掷到击球手手中。）"]
例句：
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1. The pitching tool is used to throw the ball into the batter's hand.
投球工具用于将球投掷到击球手手中。
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2.The pitching tool was designed to improve accuracy and speed in pitching.
投球工具被设计用来提高投球的准确性和速度。
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3.The pitching tool has become an essential part of baseball equipment.
投球工具已经成为棒球装备中不可或缺的一部分。