YOU SAID:

i guess translationparty did better job in japanese than you

INTO JAPANESE

翻訳者はあなたよりも日本語でうまくいったと思います

BACK INTO ENGLISH

I think the translator did better in Japanese than you did.

INTO JAPANESE

翻訳者はあなたより日本語が上手かったと思います。

BACK INTO ENGLISH

I think the translator was better at Japanese than you.

INTO JAPANESE

翻訳者はあなたより日本語が上手だったと思います。

BACK INTO ENGLISH

I think the translator was better at Japanese than you.