languidly       
adverb  literary uk/ˈlæŋ.ɡwɪd.li/ us/ˈlæŋ.ɡwɪd.li/
 慢悠悠地,悠闲自在地
slowly and with little energy, often in an attractive way
  She lounged languidly by the swimming pool. 她懒洋洋地躺在游泳池边。 
 The Toccoa River wends languidly through the mountains. 托科阿河缓缓地流过群山。 
 See: languid
 - More examples
 - She had stretched out languidly on the bed.
 - He played the slow movements languidly.
 - Balloons bobbed languidly in the still afternoon air.