英语词汇proper motion怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	proper motion
释义	proper motion 【天】自行
随便看	frustrate frustrated frustratedly frustrater frustrater frustraters frustrates frustrating frustratingly frustratingly frustration frustrations frustrative frustrative frustratory frustule frustules frustum frustums frutescence frutescence frutescences frutescent frutex fruticose

英汉双解词典包含548777条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。