demurely       
adverb uk/dɪˈmjʊə.li/ us/dɪˈmjʊr.li/
 (尤指女性表现)端庄地,文静地,安静地
(used especially of women) in a quiet and well behaved way
  She sat with her hands folded demurely in her lap. 她端庄地坐在那里,双手交叉放在膝盖上。 
 The women were demurely dressed in long skirts and high necked blouses. 妇女们都穿着长裙和高领上衣,显得很端庄。 
 See: demure
 - More examples
 - "I promise," she said demurely.
 - He looked down demurely and smiled.
 - She smiled demurely when the judge asked her to speak up.