1)risk one's fortune in doing business,"下海"2)plunge into the commercial sea,下海3)go into business,下海4)sea groundwater,地下海水5)conversion to commerce career,下海经商6)resignation to business,辞官下海7)Government officials going into business,官员下海8)stream the sea anchor,放下海锚9)suboccipital cavernous sinus,枕下海绵窦10)Inferior intercavernous sinuses,下海绵间窦