Because throwing isthe number one prerequisite for pitching, a playermust master it beforehe further pursues pitching techniques.
因为投掷是投球的第一个先决条件，球员必须在掌握它之后，他才能进一步追求投球技术。
Because throwing isthe number one prerequisite for pitching, a playermust master it beforehe further pursues pitching techniques.
因为投掷是投球的第一个先决条件，球员必须在掌握它之后，他才能进一步追求投球技术。
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