YOU SAID:
You have no idea how hard it is
INTO JAPANESE
あなたはそれがどれほど難しいか分かりません
BACK INTO ENGLISH
You don't know how difficult it is
INTO JAPANESE
あなたはそれがどれほど難しいかわかりません
BACK INTO ENGLISH
You don't know how difficult it is
Come on, you can do better than that.