2. Dragon Fan: The scientific name of giant grouper, also known as pig lamb spot, is a warm-water marine bottom fish. It is rectangular, with a flat side and a big mouth. There are many blue-black spots scattered on the head, sides and fins of fish, which is a large and precious edible fish.

3. The word "Fan" is pronounced as, and its original meaning is integer and integer, which can be used as verb, adverb and quantifier. When used as a verb, it means to buy in bulk; When used as an adverb, it means batch.