跳水时腿要伸直。
抱压的腿迅速伸直。注意：穿紧拖鞋。
Embrace the leg unbend. Quickly pressure Note: wearing tight slippers.
现在腿已完全伸直。
吸气同时滑动伸直外侧腿。
昨天上课之前的热身运动使我今天的腿都不能伸直。
Yesterday, as a warm-up exercise before class so I can stretch out the legs.
坐姿背伸直，腿于身前，膝关节伸直稍稍分开。
Sit with back straight, legs in front, slightly spread with knees straight.
不要坐在地上两腿伸直打开，不要摇摆下部。
Don't sit with legs straight and apart; don't wave the bottom.
不要坐在地上两腿伸直打开，不要摇摆下部。
Don't sit with legs straight and apart; don't wave the bottom.
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