What are couplets and horizontal batches?

The couplets and horizontal strips are as follows:

1. Dragons and tigers leaping over the human scene, birds singing and flowers fragrant, the world is spring. Horizontal comment: Tigers and tigers are powerful.

2. The dragon and the tiger leap into the new century, and it is a good time to be young and strong. Horizontal comment: Tigers and tigers are powerful.

3. The dancing swallows and the singing songs are more beautiful than the flying dragons and the leaping tigers. Horizontal comment: Tigers and tigers are powerful.

4. Soaring dragons and tigers leap over the bright ground, and the sea, rivers and rivers are clear and beautiful. Horizontal comment: Tigers and tigers are powerful.

5. The splendid future is full of dragons and tigers, and the glory is better than the dancing swallows and the singing songs. Horizontal comment: Tigers and tigers are powerful.

6. The dragon soars and the tiger leaps over the wind and clouds, and things are prosperous and the country is prosperous. Horizontal comment: Tigers and tigers are powerful.