sunkenadj.沉没的；凹陷的；低于周围平面的动词sink的过去分词.sunken furuncle雌丁Sunken fontanel囟门凹陷sunken courtyard平地窑sunken cheeks.凹陷的双颊sunken flowerbed花坞sunken greenhouse下沉式日光温室sunken flower bed低花坛sunken acetabulum髋关节内陷sunken oil storage[化] 地下油库sunken evaporation埋置式蒸发