What are the similarities between "Send Two Envoys to Anxi to Biedongda" and "Send Meng Haoran to Yangzhou" and "Send Gu"?

The first half describes the scenery.

The second half expresses the author's nostalgia for tourists.

Writing techniques are lyrical from the side, and there are feelings in the scenery.

The main idea is to express the author's reluctance to his friends.

When sending Yuan Er to Anxi

Don

Weicheng is drizzling,

The guest rooms are green and willow.

I advise you to drink more wine,

There is no reason to go out of Yangguan in the west.

Biedongda

Gaoshi

A thousand miles away in Huang Yun,

The north wind blows goose feathers and heavy snow one after another.

Mochow has no bosom friend in the future,

Everyone in the world doesn't know you.

Say goodbye to Meng Haoran on the way to Yangzhou

Lipper

Old friends frequently waved to me, bid farewell to the Yellow Crane Tower, and traveled to Yangzhou in this beautiful spring filled with catkins and flowers.

Sailing alone in the blue sky, I can see the Yangtze River flowing in the sky.

Say goodbye to the ancient grassland

(Tang) Bai Juyi

The long grass is so lush that the withered grass will thicken the color of the grass every autumn and winter.

Wildfire can't burn it out, but the spring breeze can revive it.

Weeds and wild flowers are all over the ancient road, and the end of the grass in the sun is your journey.

I once again sent my bosom friend, and the thick grass represented my deep affection.