单词	center of gravitycg
释义	center of gravitycg 重心
随便看	standard of medicinal material supplement standard of mental health Standard of message standard of mess expenses standard of military talented people standard of minimum living security standard of modernization standard of morality standard of national treatment standard of new course standard of new courses standard of new curriculum standard of no responsibility standard of office conduct committee standard of over-limit standard of over-limit charge standard of per capita land standard of perfection standard of performance standard of personal responsibility standard of per thousandpeople standard of petroleum product standard of photometry and radiometry standard of physical health standard of poetic aesthetics