英语词汇“proper motion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	proper motion
释义	proper motion n. A gradual change in the position of a star or other object on the celestial sphere that is the result of the object's intrinsic motion through space rather than mere apparent motion as observed from Earth.
随便看	building sickness building society build in (or into) build into build on build on (or upon) build on sand build out build-out buildout build up buildup build-up build upon built built-in built-up Bujumbura Bukhara Bukharin Bukhoro Bukovina Bukowski bulb bulbar

英语词典包含135693条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。