YOU SAID:

If I throw it back is it quick enough

INTO JAPANESE

私がそれを投げ返す場合、それは十分に速いです

BACK INTO ENGLISH

If I throw it back, it's fast enough

INTO JAPANESE

投げ返すと十分に速い

BACK INTO ENGLISH

Fast enough when thrown back

INTO JAPANESE

戻されたときに十分に速い

BACK INTO ENGLISH

Fast enough when returned

INTO JAPANESE

返されたときに十分に速い

BACK INTO ENGLISH

Fast enough when returned