I've had conversations with him on the training field and his knowledge speaks for itself.

我和他在训练场上谈过话，他所流露出的学识为他的形象作出了很好的证明。

youdao

The legislation that created it speaks of the expansion of human knowledge of the atmosphere and space, and the improvement of the usefulness and performance of aeronautical and space vehicles.

是法律创立了国家航空航天局，并使它做到了对大气层和太空知识的探索、显著提高了航空航天器的性能。

youdao

She speaks of the necessary unity of body and soul, which for her entails a defense of the body, defending, as she does, its knowledge and its goodness.

她说道身体心灵结合的必要性，这对她来说需要保卫其身体，为身体的知识与美好抗击。

youdao

Norquist himself often speaks with the casual confidence of a Washington fixture, secure in the knowledge that his position is far more secure than any elected official's.

CNN: Norquist's no-tax pledge has survived challenges before