YOU SAID:

the Japanese knew they had messed up when the Americans dropped the bomb on those rice cookers

INTO JAPANESE

日本人はアメリカ人がそれらの炊飯器に爆弾を落としたとき、彼らが台無しにしたことを知っていました

BACK INTO ENGLISH

Japanese knew that when Americans dropped bombs on their rice cookers, they messed up

INTO JAPANESE

日本人は、アメリカ人が炊飯器に爆弾を落とすと台無しになることを知っていました

BACK INTO ENGLISH

The Japanese knew that if an American dropped a bomb on a rice cooker, it would be ruined

INTO JAPANESE

日本人は、アメリカ人が炊飯器に爆弾を落とすと台無しになることを知っていました

BACK INTO ENGLISH

The Japanese knew that if an American dropped a bomb on a rice cooker, it would be ruined