graded gravel英语标准发音:graded gravel英式发音:美式发音:翻译中文级配碎石graded gravel - 基本释义[词典1]级配砾石graded gravel - WEB词典graded gravel级配砾石级配碎石按尺寸分级的砾石graded sand gravel级配砂砾graded sand-gravel级配砂石 参考资料: 1.百度翻译:graded gravel2.有道词典:graded gravel3.爱词霸:graded gravel