n.凹面，成凹形( concavity的名词复数 )...

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:Like paper that lacunaris oily sludge, also get into the cavities of not very smooth.对于像纸张那样的多孔基材而言, 也能进入不怎么平滑的空隙中....crystals that grow i...

concavities的音标：...

cavities的音标：...

n.腔，洞( cavity的名词复数 )，（龋齿的）洞...

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...