YOU SAID:

There are so many things I simply do not understand

INTO JAPANESE

単純にわからないことがたくさんあります

BACK INTO ENGLISH

There are many things that we simply don't know

INTO JAPANESE

私たちが単に知らないことがたくさんあります

BACK INTO ENGLISH

There are many things we simply do not know

INTO JAPANESE

私たちが単に知らないことがたくさんあります

BACK INTO ENGLISH

There are many things we simply do not know