YOU SAID:

the lives of many will be lost

INTO JAPANESE

多くの命が失われてしまいます

BACK INTO ENGLISH

Many lives will be lost

INTO JAPANESE

多くの命が失われます

BACK INTO ENGLISH

You will lose a lot of life

INTO JAPANESE

あなたは人生の多くを失うことになります

BACK INTO ENGLISH

You will lose a lot of life