他嘟哝着道了谢。用英语怎么说？

他嘟哝着道了谢。

He grunted his thanks.

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。

grunted

v. （猪等）作呼噜声( grunt的过去式和过去分词 )，（指人）发出类似的哼声，咕哝着说；

例句
Hall greeted him jovially enough , but Gorman and Walson scowled as they grunted curt " Good Mornings. "
霍尔兴致十足地向他打招呼, 戈曼和沃森却满脸不豫之色,敷衍地咕哝句 “ 早安 ”.

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。

thanks

n. 感谢，谢谢，感谢，谢谢，道谢的话( thank的名词复数 )；int. 感激（的），致谢（的）；v. 谢谢，感谢( thank的第三人称单数 )，责怪；

例句
They were already under stress, thanks to the aftershock of last year's drought.
去年遭受的旱灾让他们心有余悸、倍感忧虑。