Definition the sky hangs low over the Yangtze, empty as far as the eye can see (idiom); nothing to see to the broad horizon

Idiom 吴楚 Refers to the middle and lower reaches of the Yangtze River / Originally referring to ascending to Nanjing City, looking at it, the farther away, the more it feels that the world is drooping, and there is nothing except seeing the sky / Now it is also a metaphor of seeing nothing

Usage