YOU SAID:
The world turned dark
INTO JAPANESE
世界は真っ暗になった
BACK INTO ENGLISH
the world has gone dark
INTO JAPANESE
世界は暗くなってしまった
BACK INTO ENGLISH
the world has become dark
INTO JAPANESE
世界は暗くなった
BACK INTO ENGLISH
the world has become dark
That didn't even make that much sense in English.
