What is the first sentence of the little frog's big eyes?

The first sentence of "Little Frog with Big Eyes" is that the river is clear and the weather is sunny. Little Frog, the second volume of the first grade of primary school Chinese published by Xinmin Education Publishing House: The river is clear, the weather is sunny, and the little frog has a pair of big eyes. Many good things have been done to protect seedlings from pests. Please take good care of the little frog so that the seedlings won't get sick.

Frogs are amphibians, belonging to Chordata, Amphibia, Anura and Ranidae. Its adult has no tail. Its eggs are laid in water, fertilized in vitro, hatched into tadpoles, and breathed through gills. After the mutation, adults mainly breathe through the lungs and skin. The upper jaw has teeth, usually plow teeth. Shoulder straps fix the chest, the vertebral body is uneven, and the transverse process of sacrum is columnar; There is no mesenchymal cartilage between the two joints at the toe. The eardrum is obviously hidden under the skin, and the skin is smooth or warty. Tongue is generally oval, and there are many notches at the back end.