frostbite:冻疮 frostnip:冻伤 extremity:肢端 blister:水泡 blistered:起水泡的 conjunctivitis:结膜炎 poop:屎 gastroenterology:肠胃病学 hepatology:肝脏病学 amniotic fluid:羊水electrolyte:电解物,电解质 diarrhea:腹泻