Using the left hand pull the top section down in order to line its edge with that of the under section (needle still in the down position) which remains flat.
为了使上层裁片的边与下层裁片的边成一排，用左手将上层裁片往下拉，这样可保持平整。
The goal is simple: Isolate a stable hand and head position as you accelerate down the pool with your larger fins.
目标很简单：孤立一个稳定的手，头部位置正如你加速下来你们更大水池的鱼鳍。
The right hand, nails down, is rested on the cantle near the center, or may be held in the air near this position;
将右手放在鞍尾中心附近的位置上，或悬空放在这附近的位置上；
The right hand, nails down, is rested on the cantle near the center, or may be held in the air near this position;
将右手放在鞍尾中心附近的位置上，或悬空放在这附近的位置上；
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