Which two couplets are the Seven Laws Long March?

What kind of thoughts and feelings is Jinsha Water patting Yunya Warm Dadu Bridge to express?

On the cliffs on both sides of the Jinsha River, the rushing water beats against the towering cliffs on both sides, giving people a warm feeling; The Luding Bridge on the Dadu River spans the east and west banks, leaving only a dozen iron cables, which makes people feel deep chill.

Here is the poet's praise of the Red Army's heroic spirit and joy after defeating the enemy. Expressed the optimism of the poet's revolution.

Extended content:

The red army is not afraid of the expedition, and Qianshan is just idle.

Wuling makes waves, and Wumeng takes mud pills.

Jinsha River is warm in the clouds and cliffs, and Dadu Bridge is cold with the cross rail.

I am glad to see that Minshan Mountain is covered with snow and stretches for miles. Our soldiers crossed it and showed a bright smile.