YOU SAID:

I'm pretty sure this site is better, though I can't be sure.

INTO JAPANESE

よくわからないが、このサイトのほうがいいと思う。

BACK INTO ENGLISH

I do not know well, but I think this site is better.

INTO JAPANESE

よくわかりませんが、このサイトの方が良いと思います。

BACK INTO ENGLISH

I do not know well, but I think this site is better.