YOU SAID:
Don't let the bedbugs bite!
INTO JAPANESE
かむナンキンムシをさせてはいけない!
BACK INTO ENGLISH
Don't let the Bedbugs Bite!
INTO JAPANESE
ナンキンムシ咬傷をさせてはいけない!
BACK INTO ENGLISH
Don't let the Bedbugs Bite!
That didn't even make that much sense in English.