Poetry expresses plum blossoms in a way of wanting to promote and suppressing first. Please analyze the whole poem briefly.

The twin plum trees under the steps bloom earlier than before, but they can't be painted when spring comes.

At night, before the flowers fall, it is difficult for the leaves to grow in the shade.

If you want to pick plums, you should be wary of others coming first and then arriving, lest you climb the branches and surprise the birds.

The scenery in early spring is taken up by these two plum blossoms, but don't underestimate peaches and plums.