YOU SAID:

if it's yellow let it mellow if it's brown flush it down

INTO JAPANESE

それが黄色の場合、それが茶色の場合、それをまろやかにさせます

BACK INTO ENGLISH

If it is yellow, if it is brown, make it mellow

INTO JAPANESE

黄色なら茶色、まろやかにする

BACK INTO ENGLISH

Brown if yellow, mellow

INTO JAPANESE

黄色の場合は茶色、まろやかな

BACK INTO ENGLISH

If yellow, brown, mellow

INTO JAPANESE

黄色、茶色、まろやかな場合

BACK INTO ENGLISH

Yellow, brown, mellow case

INTO JAPANESE

黄色、茶色、メローケース

BACK INTO ENGLISH

Yellow, brown, mellow case