单词	planetoid
释义	planetoid /ˈplanɪtɔɪd / noun Another term for asteroid.Most of these are in stable orbits around the Sun and are really just small planets, or planetoids.... It is from these exchanges that Earth finally begins to establish colonies on other planets (and planetoids besides the moon) in order to deal with its overwhelming population. This shorter rotation period is typical of planetoids in our solar system, requiring no external influences to explain.
随便看	after-reckoning after-ripening after-roll afters after-sail aftersales after-school after-season after-sensation aftershaft aftershave aftershine aftershock aftershow aftersight after-ski aftersound aftersun after-supper after-swarm aftertaste after-tax after the event after-thinker afterthought

英语词典包含243303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。