painful exercise英语标准发音：painful exercise英式发音：美式发音：翻译中文痛苦的运动painful exercise - 基本释义[词典1]苦练,艰苦的训练painful exercise - WEB词典painful exercise苦练 参考资料： 1.百度翻译：painful exercise2.有道词典：painful exercise3.爱词霸：painful exercise
