There was a modern poem in the first and second grades of primary school, which was about a bridge, but it seemed to say a rainbow. Just four or five sentences.

Farewell to Cambridge by Xu Zhimo

I left gently, just as I came gently;

I gently waved and bid farewell to the clouds in the western sky.

The golden willow by the river is the bride in the sunset;

the colourful shadows in the waves are rippling in my heart.

the green grass on the soft mud is oily and swaying at the bottom of the water;

In the gentle waves of the Kanghe River, I am willing to be an aquatic plant!

that pool under the shade of elm is not a clear spring,

it is a rainbow in the sky crushed among floating algae, precipitating a rainbow-like dream.

dreaming? Support a long pole and wander to greener grass.

Load a boat full of starlight and sing songs in the splendor of starlight.

but I can't play songs, and silence is a farewell flute;

Summer insects are also silent for me. Silence is Cambridge tonight.

I left quietly, just as I came quietly;

I waved my sleeve without taking away a cloud.