What does "The weather in April is mild and clear, the green locust trees are shaded and the sandy embankments are flat" mean?

Seven words and twelve sentences to the seventh brother of Wu Langzhong in the driving department

Tang and Five Dynasties? Bai Juyi

The weather in April is mild and clear, and the green locust trees are shaded by the sand embankment. flat. (The weather in April is sunny and sunny, the locust trees are lush and green, the grass is growing all over the ground, and spring is everywhere.)

I ride alone on a good horse with a stable stirrup, and my limbs are light for the first time in single clothes.

The young disciples retreated to the palace and returned home behind closed doors without greeting them.

The wind-growing bamboo lies between the windows at night, and the moonlight shines on the pine trees.

Three cups of spring wine were tasted cold, and more than a dozen sounds were played on the Xiaoqin.

There is no one else in this peaceful place but Brother Nangong Laojia