stammers
v．结巴，口吃：在说话时因紧张、害羞或其他原因而发音不清、重复或停顿。
例句
He often stammers during his speeches.
他经常说话吃吃的。
He stammers but not so badly as you say.
他口吃但不像你说的那么厉害。
He is not a good talker, and stammers when he is speaking.
他不太爱说话，说出来也是急急巴巴，说不清楚。
