Pronunciation tips for Europeans learning American English: Whenever we have a sound like "tr," it sounds like "chr" -- for example, country or train. I don't think of "ch" sound when I say "train," but it does sound like it. It's normal, natural English. If you want to watch a video about it, here is one link: https://www.youtube.com/watch?v=AGKNtHXi5Po . Another example is "dr" sounds. Words with "dr" sound like "jjr". For example: drive, draw, dragon, address. I attached words for you to practice.