The best streamlined shape possible but one which supports the most efficient production of propulsive forces is a more complete concept for contemplation positions in the water for speed swimming.是什么意思_The best streamlined shape possible but one which supports the most efficient production of propulsive forces is a more complete concept for contemplation positions in the water for speed swimming.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句