YOU SAID:

My belly button is my old mouth

INTO JAPANESE

私のへそは私の古い口です

BACK INTO ENGLISH

my navel is my old mouth

INTO JAPANESE

彼は私の古い友人です。

BACK INTO ENGLISH

He is my old friend.

INTO JAPANESE

彼は私の古い友人です。

BACK INTO ENGLISH

He is my old friend.