Although Microsoft Translator supports over 60 languages and 12 speech languages, the next-gen Neural Machine Translation improvements are only available for Chinese and German from/to English translations for now. More languages will be supported by the new system — which brings an 11 percent in overall quality — starting in early 2019.
https://www.notebookcheck.net/Next-gen-Neural-Machine-Translation-now-available-in-Microsoft-Translator.362166.0.html