耐人咀嚼

Explanation: Refers to the intriguing 　　Usage: Style and language; as predicate, attributive; with a compliment 　　Source: Qing Zhao Yi "Fragrant white Oubei Poetry poem a": "Tanzania were more easily moved by the occasion, because things spur of the moment, prospects for the eye, the spoken language, self-energy refreshing, twist chewing." Thesaurus:  Nairen ruminate