"Young people don't work hard, but old people are sad", from the poem Long Songs. It means that it is useless to study if you don't work hard when you are young and strong. Remind us to cherish time and not to waste it.

Sunflowers in the garden are lush, and the crystal clear morning dew is waiting for the sun to shine. Spring brings sunshine and rain to the earth, and everything is full of vitality and prosperity.

I am always afraid that the cold autumn will come, the leaves will turn yellow and the grass will wither. When can a hundred rivers run into the sea and return to the west? If you don't work hard when you are young, it's no use being sad when you are old.