YOU SAID:
please don't use this door unless necessary
INTO JAPANESE
しない限り、このドアを使用しないでください必要
BACK INTO ENGLISH
Please do not use this door unless necessary
INTO JAPANESE
しない限り、このドアを使用しないでください必要
BACK INTO ENGLISH
Please do not use this door unless necessary
That didn't even make that much sense in English.