WEB流动性. fluidity uk / fluˈɪd.ə.ti/ us / fluˈɪd.ə.t̬i/ noun. (of a substance) the quality of being not solid and able to flow: 查看更多. mobility uk / məʊˈbɪl.ə.ti/ us / moʊˈbɪl.ə.t̬i/ noun. the ability to move freely or be easily moved: Some neck injuries cause total loss of mobility below the point of injury. 一些颈 ...