The ancient name of the sky is the ancient name of the sky.

1, Bixiao, Xiao Jiu, Xiao Yun, Bug, Han provided, blue sky, blue sea, blue sky, blue sky, sky, sky. The specific explanation is as follows:

2. Bi Xiao: [bixi ā o] Interpretation: blue sky. Source: Mao Dun's Midnight I: "The towering skyscrapers rushed to Lao Wuman like an avalanche and disappeared in a blink of an eye."

3. Nine days: [Ji Xi ā o] Interpretation: The highest place in the sky is a metaphor for a place that is extremely high or far away: pride goes straight to nine days. Source: Xu Teli's poem "Yan Li": "The husband is down and out, and his ambition is still suppressed."