A beacon is a light or a fire, usually on a hill or tower, which acts as a signal or a warning.
N-COUNT
指路明灯;指引者;楷模
If someone acts as a beacon to other people, they inspire or encourage them.
例句
Our Parliament has been a beacon of hope to the peoples of Europe...我们的国会一直是欧洲各族人民的希望之灯。General Rudnicki was a moral beacon for many exiled Poles.鲁德尼茨基将军是众多被放逐的波兰人精神上的引路人。