Words and idioms with mysterious words should be pleasant to listen to, meaningful, urgent and thoughtful.

Xuan Ji: The armillary sphere is an ancient astronomical instrument. It is very wonderful. -were Zhang Hengchuan Xuan Yu (Mei Yu. The beautiful stone next to jade) Xuanyuan (Yuan Jun. Pearl-producing flow; The second star of the Big Dipper. Such as: Xuan Handle (bucket handle of the Big Dipper); Dear star (star name. Beidou two stars); Xuan Shu (Xun Shu). Star name. Beidou has one star as its pivot and two stars as its grace. Generally refers to the Big Dipper; Also metaphor hub, key)