我做过一些查询，但到头来却毫无结果。

I made a few enquiries, but nothing came of it in the end.

《牛津词典》

这种调查方法到头来可能是完全没有结果的。

This line of investigation could prove to be a complete dead end.

youdao

这种调查方法到头来可能是完全没有结果的。

This line of investigation could prove to be a complete dead end.

youdao