Traditional Culture Encyclopedia - Weather forecast - Tender blue sky, a few wooden poles, a few thin lines, which word is used well?

Tender blue sky, a few wooden poles, a few thin lines, which word is used well?

Make good use of gentle words and trace words.

As can be seen from a sign, the scenery in the sky is beautiful, tender and blue. A sign shows that the line is very thin and can't be seen clearly, so these two words are used properly.