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？

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。