n. 〔通常用两根竿子撑开的〕横幅，横幅标语

n.  旗帜，口号〔指信仰或原则〕

n.  旗，旗帜

• carry/raise/wave etc the banner of sth 

  打着/举起/挥舞等某事物的旗帜

• under the banner of sth  打着…的旗号

• The onlookers were shouting, cheering, and waving banners.

  观众挥动着横幅，又是叫喊又是欢呼。

• They marched under the banner of equal educational opportunity.

  他们打着平等教育的旗号游行示威。

BrE /əˈbændən/