sidebar  
noun [ C ] uk/ˈsaɪd.bɑːr/ us/ˈsaɪd.bɑːr/
  (ON PAGE OR WEBSITE)       
 [ C ](主要新闻报道的)补充报道 
a box or narrow area on a newspaper or magazine page that contains a short news story or extra information relating to a longer main story
  [ C ](网页上的)侧边栏 
a narrow area at the side of a page on a website, giving extra information or links