升旗
to raise a flag to the top of a pole using a rope
  When you win an event, they hoist your country's flag and play the national anthem.
 Britain formally hoisted a flag on the island of Rockall.
 He took a photo of six Marines hoisting an American flag.
 Their leader hoisted a white flag and they beat a retreat.
 A group of soldiers played a small role, hoisting the Olympic flag after it had been carried into the stadium.
 See also: hoist verb