先看这幅图.加深印象:
然后"偷偷"靠近水道绳,利用水道绳来体会高肘及推水的感觉,如下:
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最后看段影片:
影片下载: http://www2.edu.ipa.go.jp/gz/h1swim/h1ba00/h1ba30/h1ba32.mpg
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