YOU SAID:
Ethan is the only black person in australia
INTO JAPANESE
イーサンはオーストラリアで唯一の黒人である。
BACK INTO ENGLISH
Ethan is the only black person in Australia.
INTO JAPANESE
イーサンはオーストラリアで唯一の黒人だ。
BACK INTO ENGLISH
Ethan is the only black person in Australia.
That didn't even make that much sense in English.