瘦小的身形削弱了他声音中的权威感。用英语怎么说？

瘦小的身形削弱了他声音中的权威感。

The authority of his voice is undermined by the smallness of his build.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

authority

n. 权威，权力，学术权威，[复数]当权者；

例句
Popular acceptance of authority had been an early aim of the Nationalists.
国家主义者的一个早期目标是推动民众对权威的接受。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

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。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

undermined

adj. 潜行的；v. 在某物下挖洞或挖通道( undermine的过去式和过去分词 )，侵蚀…的基础，暗中破坏，逐渐削弱；

例句
The authority of his voice is undermined by the smallness of his build.
瘦小的身形削弱了他声音中的权威感。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

smallness

n. 小，少，贫乏，小气；

例句
The authority of his voice is undermined by the smallness of his build.
瘦小的身形削弱了他声音中的权威感。

build

vt. 建造，构筑，建立，开发，为…建立基础；vi. 建造，营造，扩大，扩展，发展，达到；n. 体格，构造，〈俚〉优美的体型，肉体美；

例句
Marine construction technology like this is very complex, somewhat analogous to trying to build a bridge under water.
像这样的海底建造技术很复杂，与尝试在水下建桥有些相似。