It can be translated as "What is that?"
"Watashitachi nani suru" translates to "What are we doing" in English.
何 (nani)
It means ( You're beautiful )
Grandfather and Grandmother(but, maternal).
he and nani are not Hebrew words. Perhaps you mean: hee (היא) = "she" hineni (×”× × ×™) = "here I am" hineh (×”× ×”) = "here is..." or "behold"
maternal grandfather -maternal grandmother
Its his own choice
Nani Nani was created in 1995-10.
In Hindi, you would call your grandmother "Dadi" if you are the grandson or "Nani" if you are the granddaughter.
'Nani mo mamoranai.'
"Ittai nani o shiteiru n desu ka." Or, more colloquially and much more casually, "Ittai nani shiten no."