stutteringly  
adverb uk/ˈstʌt.ər.ɪŋ.li/ us/ˈstʌt̬.ɚ.ɪŋ.li/
  (SPEAKING)      
  (说话)结结巴巴地
someone who speaks or says something, especially the first part of a word, with difficulty, for example pausing or repeating a sound several times
  Do you think you ever said anything stutteringly? 你有没有口吃过? 
 - More examples
 - He stutteringly finished his sentence.
 - I asked the parent if she wanted to change schools, and she stutteringly said that she did not.
 - I stutteringly asked him if he'd like to come with me.
 
  (NOT REGULAR)      
 断断续续地
in a way that is not regular, or sometimes moves or changes and sometimes does not
  The country has modernized itself, albeit somewhat stutteringly.  这个国家靠自己实现了现代化,虽然(过程中)有些断断续续地。 
 See: stutter
 - More examples
 - It's a notably terrible performance in a film that's wearily bombastic and stutteringly paced.
 - The project continued stutteringly over the next decade.