vortex
noun /ˈvɔːteks/
  /ˈvɔːrteks/
(plural vortexes, vortices 
 /ˈvɔːtɪsiːz/
  /ˈvɔːrtɪsiːz/
)- (specialist) a mass of air, water, etc. that turns round and round very fast and pulls things into its centre
 synonym whirlpool, whirlwind低涡;涡旋;旋涡  - (literary) a very powerful feeling or situation that you cannot avoid or escape from
感情(或局势)的旋涡 - They were caught up in a whirling vortex of emotion.
他们陷入了感情旋涡。  
 - They were caught up in a whirling vortex of emotion.
 
词源mid 17th cent.: from Latin vortex, vortic-, literally ‘eddy’, variant of vertex.