单词	symmetry operations
释义	symmetry operations 对称操作
随便看	external nuclear layer external number external numbering plan external number repetition External nutrition external obilque line external object external objective factor external oblique external oblique abdominal m external oblique diameter external oblique line external oblique muscle external oblique muscle of abdomen external oblique muscles external oblique reflex external observation external obstacles External obstetrical version external obturation external obturator muscle external occipital crest external occipital protuberance external occipital spine external ocular examination