He leavened his speech with humor.是什么意思？

He leavened his speech with humor.

他在演说中掺了一点幽默.

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。

leavened

adj. 加酵母的；v. 使（面团）发酵( leaven的过去式和过去分词 )，在…中掺入改变的因素；

例句
His mood of deep pessimism cannot have been leavened by his mode of transport—a black cab...
他极度悲观沮丧，而他的代步工具——一辆黑色的出租车，丝毫不能舒缓这一情绪。

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。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

humor

n. 幽默，心情，诙谐；vt. 迎合，牵就，顺应；

例句
Shakespeare has accustomed us to a mixture of humor and tragedy in the same play.
莎士比亚让我们习见了同一场戏目中的悲喜交错。