A Study on the Relations Among the Aerobic Endurance, the Lactic Acid Threshold and the Individual Anaerobic Threshold for the Cross Country Skiers是什么意思_A Study on the Relations Among the Aerobic Endurance, the Lactic Acid Threshold and the Individual Anaerobic Threshold for the Cross Country Skiers在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句