GbEng
他一紧张就结巴。 He stammers when he feels nervous.
这个小男孩因为结巴不敢回答老师的问题。 The boy dare not answer the questions because of his stammer.
那发言者讲话结结巴巴的, 有时得由主席提示. The speaker was rather hesitant and had to be prompted occasionally by the chairman.