The "爽" in "秋高气爽" does not mean bright, but refreshing. "Autumn High and Sharp is a Chinese idiom, pronounced qiūgāoqìshuǎng, which describes a clear sky and cool weather in autumn. It comes from "Cui's East Mountain Cao Tang": "I love the quietness of your Jade Mountain Cao Tang, and the freshness and newness of the high fall and cool weather."

Sentence-making:

1. On a high and cool autumn day, my classmates and I went on a field trip.

2, The Inner Mongolian grassland in September is high and fresh in autumn, and the cattle and sheep are fat and strong.

3、Autumn's high and clear, like a sea of sorghum lifting up torches, boundless soybeans ringing brass bells.

4. In the golden month of October, autumn is a good time for hiking!

5, the hot summer is finally over, the autumn harvest season is coming to us.

6, in the morning, the autumn wind, a look at the blue sky, the sun is bright, the leaves in the wind swaying happily.