由于大部分划臂动作是在侧面完成的，所以侧面踢腿的训练也很重要。
Since most of the stroke is actually done on the side , practising kicking on the side is also important.
随着数周累月的训练过去后，这使得他们划臂很对称——同时游得如此之快！
As the weeks and months of training go by, this keeps their strokes symmetrical - and so fast!
要着重讲授或改善每个划臂阶段的水感- -讲授象划水掌、脚蹼和外科医用胶管等训练辅助物的使用，将会有助于提高感官知觉的输入。
Emphasize the feel of each stroke phase being taught or improved - teaching aids such as paddles , fins , and surgical tubing may help to improve sensory input.
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