What should I tell this kid?

I’m in a group of 4 doing a certain lab and our lab report is due tuesday. One of the kids, who happens to be Chinese and not have great english, volunteered to the discussion section, and the we dished out the other sections. Well he recently emailed his section to me, and I can’t understand it all. I’m a smart person, but the grammar makes no sense whatsoever, so I don’t even know what point he was trying to get across. Now, me and another guy have to get together and rewrite it. The fourth guy is also chinese with bad english. Should I say anything to the guy who wrote the discussion? If so, what should I say to him? I don’t want to be offensive but if he wants to work in a lab he has to learn to write a lab report.