YOU SAID:

my uncle dived into the mariana trench

INTO JAPANESE

私の叔父は、マリアナ海溝に飛び込んだ

BACK INTO ENGLISH

My uncle jumped in the Mariana Trench

INTO JAPANESE

私の叔父はマリアナ海溝に飛び込んだ

BACK INTO ENGLISH

My uncle jumped in the Mariana Trench