turn the forearm or the hand so that the palm is directed downwards
例句
It depends how much you weigh and how much you pronate. 这取决于你的体重和内翻程度。
It allows us to see where a patient over pronate or supinate so that we can correct their abnormal biomechanics accurately by applying foot orthoses effectively. 电脑足底压力分析设备 ：提供静态及动态分析。为足患者检查足部生物力学出现内旋或外旋过多的现象，并协助选配矫形鞋垫，能有效控制过多不正常足部动作。
