confluence [ˈkɑ:nfluəns]

例句:

• a confluence of social factors
  多种社会因素的汇集
  
• The 160-metre falls mark the dramatic confluence of the rivers Nera and Velino.
  内拉河和韦利诺河的汇合处是落差达160米的瀑布，景象十分壮观。
  
• Like most cases of extreme weather, its severity was due to an unusual confluence of events.
  如同大多数极端天气状况一样，其剧烈程度是由于几种气象条件反常地汇集在一起造成的。
  
• I think it's a confluence of interests.
  来自VOA
• The jump in Chinese students reflects a confluence of factors.
  来自WSJ
• Heindel says the confluence of all of these issues is damaging.
  来自VOA