若有若无

Explanation: Describe the relationship between things is not clear or does not close. 　　Source: Ming-Hong Ying-ming, "Cai Gen Tan quiet": "Ruoyouruowu, half true half-Magic, the most adequate head and excluded people Yue human spirit. Really a wonderland but also between heaven and earth." 　　Examples: She was very clear to her that he had ~, do not mind at ease. ★ Sha Ting "Gold Rush" Eight Thesaurus:  partly hidden and partly visible, loom, Ruocunruowang