To my knowledge, he has never lied before.

据我所知，他以前从未撒谎。

To my knowledge, there is an oversupply of such goods.

据我所知, 这种商品现在供过于求.

To my knowledge, there is no such idiom in English.

据我所知, 英文里并没有这样的成语.

To my knowledge, I have provided all required credentials .

据我所知，我已提供了所有必要的材料。

Don't go crazy here because to my knowledge there is no undo button.

不要太狂热了，因为据我所知是没有挽回的按钮。

To my knowledge, no researchers have come close to doing this.

据我所知，现在研究者所做的工作，连这个门都还没入。

To my knowledge I am the only one in the world that are tracking this particular species this way.

据我所知，我是全球唯一一个以这种方式追踪该物种的人。

To my knowledge, I am the only one in the world that are tracking this particular species this way.

据我所知，我是世界上唯一一个以这种方式追踪这种特殊物种的人。

Not to my knowledge. From what the King told me, he was rather dubious about it, calling it the work of charlatans.

据我所知，不感兴趣。据国王所说，他对于炼金术持怀疑态度，称其为装模作样的工作。

This can be, to my knowledge, one of the only albums written to accompany a work of written prose (I think this should happen way more often).

据我所知，这可能是唯一一张为一部著作而写的专辑（我认为这种产生方式应该更经常一些）。