What does the solar term mean?

Solar $ TERM means the phonetic symbol of 24 solar terms: beauty [? So what? l？ r t？ Rm] English [? s？ l？ (r) t？ m]

Solar means solar system and $ term means $ term.

In China, the 24 solar terms are a very important tradition.

In China, the 24 solar terms are a very important tradition.

The twenty-four solar terms are the crystallization of the wisdom of the ancient working people in China.

The twenty-four solar terms are the crystallization of the wisdom of the ancient working people in China.