His fingerprints were a clear proof of his guilt.

他的指纹就是他犯罪的明证。

youdao

This article also put forward a simple and clear proof about the above viewpoint.

同时，通过简明反证法就上述观点给出了一种简单的证明。

youdao

This article also put forward a simple and clear proof about the above viewpoint.

同时，通过简明反证法就上述观点给出了一种简单的证明。

youdao