YOU SAID:
hi person that i don't know
INTO JAPANESE
こんにちは、私の知らない人です
BACK INTO ENGLISH
hello i don't know
INTO JAPANESE
こんにちは、わかりません
BACK INTO ENGLISH
hi i don't understand
INTO JAPANESE
こんにちは、わかりません
BACK INTO ENGLISH
hi i don't understand
Well done, yes, well done!