Describe the return of the south to the south in verse

Describe southerners' return to the south in the following lines:

1, Sauvignon Blanc (Bai Juyi)

The west wind rises in September, and the moonlight is frosty.

The autumn night is long and the soul rises for nine nights.

In February, the east wind comes and the grass opens.

I miss you late in spring, and my intestines go back nine times a day.

My concubine lives in the north of Luo Qiao and your husband lives in the south of Luo Qiao.

We met at the age of fifteen, and we are twenty-three this year.

Like a radish, born by the pine tree.

The vine's short branches are bitter and tall, and its back cannot move.

People say that people have a wish and it will come true.

Willing to be a distant beast, step by step.

I would like to be an old tree in the mountains, with branches connected.

2, the spring water is foggy, and the window is painted.

Hui Nantian explained as follows:

Returning to the south sky, also called southerly sky, is a kind of weather resurgence phenomenon, which mainly appears in southern provinces such as Guangdong, Guangxi, Hainan and Fujian. When returning to the south, the relative humidity of the air can reach 100%.

In these areas, in March and April every year, cold air affects from time to time, resulting in low surface temperature of buildings and so on. After the cold air passes, the warm and humid airflow from the ocean quickly "bounces", the temperature rises rapidly, and the air humidity increases.

When the surface of a cold object meets the warm and humid airflow, water droplets will be generated on the floor, walls, etc. This is the same reason that glasses will fog immediately when they enter a warm room from a cold outdoor in winter.