Ode to the Yellow River is a straightforward and lyrical poem. Because "Defending North China, Defending All China" and even the whole poem are full of passion, which is directly expressed and gives people a very straightforward feeling.
The straightforward lyrical ones are: Li Bai's coming to drink, and thinking of Xu Zhimo's farewell to Cambridge in the quiet night.
Euphemistic and implicit are: Yu Guangzhong's homesickness