研究表明：教学的重点难点应根据投掷步技术在投掷步过程能否体现速度和节奏以及是否有利于最后用力来确定。
The points depend on whether the techniques can demonstrate speed and pace and whether they are in turn beneficial to the last strength.
研究表明：教学的重点难点应根据投掷步技术在投掷步过程能否体现速度和节奏以及是否有利于最后用力来确定。
The points depend on whether the techniques can demonstrate speed and pace and whether they are in turn beneficial to the last strength.
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