The last two sentences of this poem are a stroke of genius. Only a few crosses make the image of a white-haired and sad old man stand in front of readers. Author Wang Chun didn't get any happiness, but he was trapped by [feeling time] and [hating farewell], and finally he often scratched his hair. Although the poet was only forty-five years old at this time, his hair became less and less because of anxiety all day long. Almost hairpin-shaped. If the two feelings are unified, the whole article will be finished. The author uses the subconscious action of scratching his hair to turn full of sadness into a vivid image that can be seen and touched. Naturally, he led the reader into the artistic conception of the poem and produced a * * * song. Facing the fallen mountains and rivers, a white-haired old man kept scratching his head and sighing because of anxiety and sadness. The old man's long hair in the past has been broken off one by one, so short that he can't comb his bun and insert his hair sticks. This detail described in the poem implicitly and profoundly expresses the poet's feelings of worrying about the country and homesickness. You choose some!