2. The sky is extremely bright.

3. Brilliant (eyes).

4. Brilliance (jewelry).

5. Brilliance (butterfly).

6. The lake is extremely bright.

Definition of words:

1. Ocean: a geographical term, which is the floorboard of the widest water body on the earth.

2, the sky: Chinese vocabulary, pinyin tiān kūng, that is, the sky is empty; The vast space where the sun, moon and stars are listed. It is an important part of the earth. There is an ancient saying in China that the sky is round and the earth is round.

3. Eyes: organs that can sense light. The simplest eye structure can detect the brightness of the surrounding environment, and the more complex eye structure can provide vision.

4. Jewelry: There are broad sense and narrow sense. Jewelry in a narrow sense refers to jade products. Jewelry in a broad sense should include jewelry, handicrafts or other treasures with certain value made of gold and silver and natural materials (minerals, rocks, organisms, etc.). Therefore, there was a saying of "gold and silver jewelry" in ancient times to distinguish gold and silver from jewelry.

5. Butterfly: a general term for arthropods, Insecta, Lepidoptera and Hymenoptera.