YOU SAID:
The world has been changed, too.
INTO JAPANESE
世界も変わりました。
BACK INTO ENGLISH
The world has changed too.
INTO JAPANESE
世の中は変わってしまった。
BACK INTO ENGLISH
The world has changed.
INTO JAPANESE
世の中は変わってしまった。
BACK INTO ENGLISH
The world has changed.
That didn't even make that much sense in English.