I have found that pictures sometimes help in communicating with people who don't speak the language I do. There is a site where I have found many pictures to match with vocabulary words for kids. It is: www.synonyms.net (There are probably other sites, also.)
{If you don't know how to get the pictures - pull up the workd you want, R click on the picture you want & copy. Have MS Word pulled up, paste on the Word page. If you want the picture to be bigger, click on a corner and pull mouse out so picture enlarges.}
This is just a thought, I am not piling on you or criticizing you. I am very sorry you are offended by some of the posts - (((HUGS))) Your son's friend who speaks their language is a good idea, also.
I have found that when I tried to use a translation site on the web that the computer prints the translation quite literally and not always in a way that a person speaking that language can understand. (That's just my experience)
Again (((HUGS))) I am sure no one intended to offend you. Some of us just speak our own truth/opinion quite blatantly. You don't need to take it personally, it is just someone's opinion. Take it or "be a duck" (let it roll off your back). Ultimately, it is your choice what you do.