Look what the sun lost after a hard day's work. What did its light gradually become? Like what?

1, the sun gathered its dazzling light and turned into a red round face. The blue sky is like a clear lake. Slowly, the color is getting stronger and stronger, like the lake is rising.

2. Wild geese seem to be not afraid of fatigue and fly in the high blue sky all the year round. They flew over dense forests, clear streams, towering peaks and vast grasslands. ...