YOU SAID:

Human mortality is a test on our memory

INTO JAPANESE

人間の死亡率は私たちの記憶のテストです

BACK INTO ENGLISH

Human mortality is a test of our memory

INTO JAPANESE

人間の死は私たちの記憶のテストです

BACK INTO ENGLISH

Human death is a test of our memory

INTO JAPANESE

人間の死は私たちの記憶のテストです

BACK INTO ENGLISH

Human death is a test of our memory