YOU SAID:

key to succss is fail

INTO JAPANESE

succssの鍵は失敗です

BACK INTO ENGLISH

the key to succss is a failure

INTO JAPANESE

屈服の鍵は失敗である

BACK INTO ENGLISH

the key to yielding is failure

INTO JAPANESE

屈服の鍵は失敗である

BACK INTO ENGLISH

the key to yielding is failure