1. The brook runs forward like a naughty child, singing songs.

2. The stream sang a cheerful song and ran down the mountain stream all the way.

3. The stream sang happily and ran forward.

4. The stream carried some fallen leaves, humming a tune and splashing away.

5. The stream flows in winter, like a drummer playing tirelessly.

6. The trickling brook is like a passionate girl singing a beautiful song.

7. The brook marched with light steps, singing cheerful songs, and ran happily into the distance.

8. The stream, like a bright and pleasant song, flows far into the sea.

9. In spring, the tinkling brook is like a sentimental girl singing a beautiful song.

10. The clear stream trickles down and tinkles, like singing a song that will never end.

11. The stream flows slowly, like a gentle girl, slowly swinging a pair of jade arms.

12. The stream sang along the way and ran to the distant sea.

13. The brook is so naughty. It turns around the big stone for several times, pushes the fallen leaves forward, and sings songs with different tunes slowly.

14. In autumn, the brook flows slowly like a shy girl. The maple leaf floats onto the brook, like a little boat, and like a traveler's sustenance and yearning for his hometown.

15. The stream flows slowly, like a gentle girl, slowly swinging a pair of jade arms; The brook was quiet, and under the caress of the sun, she smiled sweetly.