Selected Domestic flights in Brazil are "Intercontinental", which means which the flight has arrived from abroad and is constant without the need of clearing all passengers through customs and immigration. Nasalization is quite common in lots of BP dialects and is very recognizable in vowels right before /n/ or /m/ https://moz-news.com/userinfo.php?username=caridad.lindsey_451693&mod=space&do=profile&com=profile