YOU SAID:
I sell water guns full of cat pee to children
INTO JAPANESE
猫のおしっこいっぱいの水鉄砲を子供たちに売っています
BACK INTO ENGLISH
We sell water guns full of cat pee to children
INTO JAPANESE
猫のおしっこいっぱいの水鉄砲を子供たちに販売しています
it is unlikely that this phrase will ever reach equilibrium