Swallow and oriole play an idiom.

The oriole sings and swallows-the joy of spring

Commentary: The oriole is singing and the swallow is flying. Describe the noisy and active scene of birds in spring. Nowadays, people often compare it to the scene of vigorous development of revolution and construction.

From: Stone's "Jinbeiting" words: "Smoke is red and green, the wind is fragrant, and Yan dances in Changchun."

Example: looking for an old place thousands of miles away, the old look is changed. Everywhere ~, there are many gurgling waters, and high roads enter the clouds.

◎ Mao Zedong's poem "Shuidiao Song Heads on Jinggangshan"

Grammar: combination; As predicate and attribute; Include praise