单词	per ann.
释义	per ann. abbr. per annum
随便看	orbital opening orbital ophthalmoplegia orbital optic neuritis orbital osteoperiostitis orbital overlap orbital overlap population orbital paramagnetism orbital parameter orbital parity orbital part orbital particle accelerator orbital path orbital payload orbital period orbital pertubation orbital perturbation orbital perturbations orbital phase conservation orbital phlegmon orbital photography orbital plane orbital plane coordinate system orbital planes orbital (planetary) electron orbital plate 春梦人间须断春梦家山何处春梦笙歌里春梦绕胡沙春正好春水方生春水溶溶春水迷天春水迷天春江月出大堤平画片画片儿画界画皮画盲画眉画眉草画知画稿画笔