乐此不疲

Explanation: Something for love rather than feeling tired dry. Describe a particular interest in something which the immersion. 　　Usage: Contraction type; as the predicate attribute; with compliment 　　Source: Fan Ye Southern Song "under the Later Han Ji Guangwu": "I own this music, not to exhaust yourself." 　　Examples: Even take the old man, no matter what the nature is difficult, every question must know, understand that the answer, not that detailed and do not answer, and ~. ★ Qing Wen Kang "Children Heroes" back to the thirty-eighth 　　Riddle: Singing add to the fun Thesaurus:  to chatter without stop, nag; say over and over again; constantly repeat, Endless luxury luxury, have a nimble tongue, Enjoyable, music amid, yack, talk on and on foolishly and tediously endlessly, garrulous and sharp-tongued, Garrulous Cheap tongue, thousands and thousands of words, Language million thousand words, Shikuchuisheng, One long, one short Antonym Group:  Qixiaruyu, Qitiruyu, banquet of brine, Tisiliulian