Brief analysis: the words "sunken ship" and "sick tree" are used to describe difficulties and setbacks, but there is no resentment in the poem, instead, it shows an open-minded and cheerful attitude towards the changes of the world and the ebb and flow of the tide. It reminds people not to be intimidated by temporary difficulties, obstacles and setbacks. We should see the "Qian Fan" next to the "sunken ship" and the "Wan Muchun" in front of the "sick tree". Losses are common. The old ones don't go, and the new ones don't come. New things will definitely replace old things, and victory will always belong to the brave.