YOU SAID:
Cities get polluted due to too much traffic
INTO JAPANESE
交通量が多すぎるために都市が汚染される
BACK INTO ENGLISH
The city is polluted due to too much traffic
INTO JAPANESE
街は交通量が多すぎて汚染されています
BACK INTO ENGLISH
The city is heavily polluted and polluted
INTO JAPANESE
街はひどく汚染されていて汚染されています
BACK INTO ENGLISH
The city is heavily polluted and polluted
You've done this before, haven't you.