I wish Duolingo had a Vietnamese course.
You can translate the site to Vietnamese but they can't teach it to you, come on.
You can translate the site to Vietnamese but they can't teach it to you, come on.
Nice Viet-English pun there.
(Cám ơn == thank you.)
Edit: Found it, http://incubator.duolingo.com/courses/vi/en/status