cavity
noun [ C ] uk/ˈkæv.ə.ti/ us/ˈkæv.ə.t̬i/
(HOLE) 空隙;洞;腔a hole, or an empty space between two surfaces
The gold was hidden in a secret cavity. 金子藏在一个隐秘的洞穴里。
(TOOTH) (牙齿上的)龋洞,蛀牙洞a hole in a tooth
(IN THE BODY) medical specialized(身体内的)腔 a hollow space in an organ or body part
the upper nasal cavity 鼻腔上部
Synonyms: chamber (SPACE) gap (HOLE)hole (SPACE)hollow pocket (GROUP/AREA)space (EMPTY PLACE)