YOU SAID:

we had to blend up liver and mix it with hydrogen peroxide, and it smelled very bad

INTO JAPANESE

レバーを混ぜて過酸化水素と混ぜなければなりませんでしたが、とても悪臭がしました

BACK INTO ENGLISH

I had to mix the liver and mix it with hydrogen peroxide and it smelled so bad

INTO JAPANESE

肝臓を混ぜて過酸化水素と混ぜなければならなかったのですが、とても悪臭がしました

BACK INTO ENGLISH

I had to mix the liver and mix it with hydrogen peroxide and it smelled so bad