YOU SAID:
i don't undersatnd this
INTO JAPANESE
私はこれを理解していません
BACK INTO ENGLISH
I do not understand this
INTO JAPANESE
私はこれを理解していない
BACK INTO ENGLISH
I do not understand this.
INTO JAPANESE
私はこれを理解していない
BACK INTO ENGLISH
I do not understand this.
You've done this before, haven't you.