YOU SAID:

I dont really know what this does

INTO JAPANESE

これが何をするのかよくわからない

BACK INTO ENGLISH

I'm not sure what this does

INTO JAPANESE

これが何をするのかわかりません

BACK INTO ENGLISH

I don't know what this does

INTO JAPANESE

これが何をするのかわかりません

BACK INTO ENGLISH

I don't know what this does