circumference of a circle英语标准发音：circumference of a circle英式发音：美式发音：翻译中文圆的周长circumference of a circle - 基本释义[词典1]圆周运动circumference of a circle - WEB词典circumference of a circle圆周圆的周长 参考资料： 1.百度翻译：circumference of a circle2.有道词典：circumference of a circle3.爱词霸：circumference of a circle
