When I swim fast breast stroke, I try to picture that I can almost dig into a cross position with body flat on the water and my arms are a 180 degree.
当我快速蛙泳时，我总是能展现一个十字姿态：身躯平躺在水中，手臂展开180度。
When I swim fast breast stroke, I try to picture that I can almost dig into a cross position with body flat on the water and my arms are a 180 degree.
当我快速蛙泳时，我总是能展现一个十字姿态：身躯平躺在水中，手臂展开180度。
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