2, context, Chinese idioms, pinyin is lái lóng qù mài, the mountains are like a dragon. This is a superstition that people talk about Feng Shui, and later it is a metaphor for the origin of people and things or the cause and effect of things.
3, from Wu Ming Rachel's "Yunbi Ji Niu Mian's Cave": "The thousand posts here are good; Context; A mountain facing the ridge; Various qualifications; This is a rich land. "