Comment by pawelwentpawel

Once you learn, how do you maintain the language? I'm currently in Brazil speaking Portuguese a lot. I used to speak more Spanish. Right now, if I want to switch back to Spanish it takes me a lot of time. They're so similar I still keep on mixing them up quite often. I even started a small project (https://glot.space) to try to keep training vocabulary in two languages at the same time to keep the distinction in my brain.