YOU SAID:

I really do not understand what this is

INTO JAPANESE

私はこれが何であるかを本当に理解していません

BACK INTO ENGLISH

I don't really understand what this is

INTO JAPANESE

これが何なのかよくわかりません

BACK INTO ENGLISH

I'm not sure what this is

INTO JAPANESE

これが何なのか分からない。

BACK INTO ENGLISH

I'm not sure what this is.

INTO JAPANESE

これが何なのか分からない。

BACK INTO ENGLISH

I'm not sure what this is.