YOU SAID:
I don't understand how goldfish will all die today
INTO JAPANESE
今日、金魚がどうやって死ぬのかわかりません
BACK INTO ENGLISH
I don't know how goldfish die today
INTO JAPANESE
今日、金魚がどのように死ぬのかわかりません
BACK INTO ENGLISH
I don't know how goldfish die today
You've done this before, haven't you.