cavities
n. 腔,洞( cavity的名词复数 ); (龋齿的)洞
A cavity is a space or hole in something such as a solid object or a person's body.
In dentistry, a cavity is a hole in a tooth, caused by decay.
Cavities in teeth are caused by decay.
牙齿上的空洞是由龋蚀造成的.
The dentist filled several cavities in my teeth.
牙医给我的牙堵了好几个洞 excavation 指“挖掘的洞”,如:
Numerous and extensive eddy cavities retard the turbulent mixing process.
多而大的涡流区延迟了扰动的混合过程.
Epithelium also lines the air tubes and lung cavities.
上皮组织还衬盖气管和肺腔.
Both conditions filled the brain with " vacuoles ", small cavities resembling the holes in a sponge.
两者的脑都布满 “ 空泡 ”, 一些像海绵中的小空泡.