YOU SAID:

You are a poorly polished potato, my good sir!

INTO JAPANESE

あなたは粗末なジャガイモです、私の良き先生！

BACK INTO ENGLISH

You are a poor potato, my good teacher!

INTO JAPANESE

あなたは貧しいジャガイモ、私の良い先生です！

BACK INTO ENGLISH

You are a poor potato, my good teacher!