Help complement the poem and say the meaning.

1, the whole sentence is: "I will go, Yangliu is Yiyi; I think about it today, it's raining. "

This famous sentence comes from the book of songs "Picking Wei", which is translated as follows: When I went out to war, Yangliuyiyi blew with the wind; Now on the way back, the snow is flying all over the sky.

2. Delighting in Rain on a Spring Night

Du Fu

Good rain knows the season, when spring comes.

Sneak into the night with the wind, moisten things silently.

The wild path is dark, and the river is bright.

Look at the red and wet place, the flowers in Jinguancheng are heavy.

With the gentle wind blowing quietly at night,

Moisten everything gently and silently.

3, from Xin Qiji's word "Yellow Sand Road Xijiang Moonlit Night"

Don't be surprised at the bright moon,

At midnight, the breeze blew cicadas.

Daohuaxiang said harvest,

Listen to the frogs.

There are seven or eight stars in the sky.

Before it rains at two or three o'clock.

In the past, beside the forest in Maodian community,

This road turns to the creek bridge.

The bright moon on the horizon rose to the treetops, scaring away the magpies perched on the branches. The cool evening breeze seems to blow the cicadas in the distance. In the fragrant rice, people are talking about the harvest year, and there are waves of frogs in their ears, as if talking about the harvest year. Cloud flying is light, the twinkling stars appear and disappear, there is light rain in front of the mountain, and the poet rushes across the stream from the bridge to avoid the rain. Where did the hut shop by the Woods near the Land Temple go before? Turning the corner, Maodian suddenly appeared in front of him.

4. Pu's Jing Tian Sand Ball

Sunset in a lonely village,

Western jackdaw in the west, old trees with light smoke,

A small flying shadow.

Green mountains and green waters,

White grass, red leaves and yellow flowers.

The horizon is sunset and sparse sunset glow, not far from a lonely village. When I watched it, I could only see some old trees and crows inhabiting it with a little mist before nightfall.