| 释义 |
sit-up AHD[sĭtʹŭp'] D.J.[ˈsɪtˌʌp]K.K.[ˈsɪtˌʌp]n.Sports（名词）【体育运动】- A physical exercise in which one uses the abdominal muscles to raise the torso from a supine to a sitting position and then lies back down again without moving the legs.仰卧起坐：一种体育锻炼方式，练习者用腹肌的力量在腿部保持不动的情况下把上肢从平躺状态起成坐姿，然后在不动腿部的前提下平躺下去
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