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自由泳手入水点过近除了超中线还有其他问题！
入水点过近还会让我们手的入水角度增大，造成手往水下插的问题！更直接的问题是增加了水下前伸的行程，更大的增加了水阻！每天进步一点点，爱上游泳喽！
爱上游泳喽72/786
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