The Vietnamese language is derived of many different languages. Vietnamese culture, language, and cooking is highly influenced by the French because they ruled over Vietnam for about 100 years. Other cultures that influenced Vietnam are China, Mandarin, English, and many more. Vietnamese land is highly sought after because of its fertility and proximity to the ocean. This is why many cultures sought after it.
:) See the first comment: "ga" comes "Gare" in French. "ga" can also mean "gas" used in kitchens. http://tratu.coviet.vn/hoc-tieng-anh/tu-dien/lac-viet/V-A/ga.html
I do like duolingo very much. But: How do we know when to write "the" before a word? I dont see the classifier in Vietnamese here. When I was asked to write "bee" in vietnamese, I only wrote "ong" since they didn't say "the bee". And "ong" was right. So why now "the" before "train station"?
Learners have been asking to be taught words that are actually used in daily conversations other than ones in dictionaries which, in turn, are way too formal or impractical, again, in daily conversations. By the way, I can't see any problems with "Nhà ga" ~ "The train station" at all. Can you please shed some light on your comment?