length of travel英语标准发音：length of travel英式发音：美式发音：翻译中文行程长度length of travel - 基本释义[词典1]行程length of travel - WEB词典length of intervals of travel推进长度 参考资料： 1.百度翻译：length of travel2.有道词典：length of travel3.爱词霸：length of travel
