His voice lowers confidentially.是什么意思？

His voice lowers confidentially.

他神秘地压低了嗓音。

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。

voice

n. 嗓音，（动词的）语态，呼声，发言权，歌唱才能；vt. 发音，表达，说出，给（一部乐曲）配上声部，给（如管风琴音管）整声；

例句
Her voice is passionate. Her eyes are ablaze.
她声音激昂，目光如火。

lowers

v. （使）降低， （使）跌落( lower的第三人称单数 )，削弱，削减，减少；

例句
This drug lowers cholesterol levels by binding fats in the intestine.
这种药通过黏合肠内的脂肪降低胆固醇水平。

confidentially

adv. 秘密地，亲密地，十分信任地；

例句
Kitzi was an adept at getting people to talk confidentially to him.
基齐很善于引导别人与其谈心。