YOU SAID:

the laste ar of the blue color was going fast

INTO JAPANESE

青い色のラストアーは急速に進んでいた

BACK INTO ENGLISH

the blue rustler was rapidly advancing

INTO JAPANESE

青いサビは急速に進んでいた

BACK INTO ENGLISH

the blue rust was rapidly advancing

INTO JAPANESE

青い錆は急速に進んでいた

BACK INTO ENGLISH

the blue rust was advancing rapidly

INTO JAPANESE

青い錆は急速に進んでいた

BACK INTO ENGLISH

the blue rust was advancing rapidly