YOU SAID:
You Can Tune a Piano, but You Can't Tuna Fish
INTO JAPANESE
ピアノをチューニングすることはできますが、マグロを釣ることはできません
BACK INTO ENGLISH
You can tune the piano, but you can't catch tuna
INTO JAPANESE
ピアノは調律できますが、マグロは釣れません
BACK INTO ENGLISH
You can tune the piano, but you can't catch tuna
That didn't even make that much sense in English.