He bumbled through his speech.是什么意思？

He bumbled through his speech.

他结结巴巴地讲完了他的演说.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

bumbled

v. 犯错误( bumble的过去式和过去分词 )，杂乱无章地说，发出嗡嗡声，笨拙地进

例句
He bumbled through his speech.
他结结巴巴地讲完了他的演说.

through

prep. 通过，穿过，经由，透过，凭借；adv. 从头到尾，彻底，自始至终；adj. （电话）接通，通话完毕，有洞的，直达的；

例句
The proposal was instantly voted through with two to one in favour, accompanied by enthusiastic applause...
在热烈的掌声中，提案以2比1的优势很快通过了表决。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

speech

n. 演说，演讲，发言，说话，谈话，说话能力或方式，（乐器的）音，音色，方言，民族语言；

例句
The President declined to deliver the speech himself, on account of a sore throat...
总统因嗓子不适而婉拒了亲自讲话。