YOU SAID:
aluminum is lighter than iron
INTO JAPANESE
アルミニウムは鉄より軽い
BACK INTO ENGLISH
Aluminum is lighter than iron
INTO JAPANESE
アルミニウムは鉄より軽い
BACK INTO ENGLISH
Aluminum is lighter than iron.
INTO JAPANESE
アルミニウムは鉄よりも軽い。
BACK INTO ENGLISH
Aluminum is lighter than iron.
That didn't even make that much sense in English.