Fact speak louder than words.是什么意思？

Fact speak louder than words.

事实胜于雄辩

fact

n. 事实，实情，实际，真相，证据，犯罪行为；

例句
The whole air of menace was accentuated by the fact that he was so cordial and soft-voiced.
他如此亲切，说话轻声细语，这更加重了威胁的语气。

speak

vt.& vi. 讲，谈，演说，从某种观点来说；

例句
Do you speak any foreign languages?...
你会说外语吗？

louder

loud（响亮的，大声的，高声的）的比较级形式；

例句
As we got close to Broadway, we heard the sounds of revelry getting louder and louder.
我们接近百老汇时，听到人们饮酒狂欢的声音越来越大。

than

conj. 比（用于比较级），宁愿…而不愿，除…以外，一…就；prep. 超过，比；

例句
...more than a thousand acres of land.
1,000多英亩地

words

n. 字( word的名词复数 )，（说的）话，诺言，口令；

例句
She felt as if his words had granted her absolution.
她感觉他的那番话好似给她下了道赦令。