YOU SAID:

They stole the bikes.

INTO JAPANESE

彼らはバイクを盗んだ。

BACK INTO ENGLISH

They stole a bike.

INTO JAPANESE

彼らは自転車を盗んだ。

BACK INTO ENGLISH

They stole a bicycle.

INTO JAPANESE

彼らは自転車を盗んだ。

BACK INTO ENGLISH

They stole a bicycle.