YOU SAID:

you threw a spanner in the works

INTO JAPANESE

あなたは作品にスパナを投げました

BACK INTO ENGLISH

You threw a spanner at the work

INTO JAPANESE

あなたは仕事にスパナを投げました

BACK INTO ENGLISH

You threw a spanner at a job

INTO JAPANESE

あなたは仕事にスパナを投げました

BACK INTO ENGLISH

You threw a spanner at a job