Steak is divided into medium rare, medium rare, medium rare, medium rare and well-done, or medium rare, medium rare and well-done (very well-done), which is actually just a translation habit. The original translator did not translate it into medium rare, medium rare, medium rare and medium rare. After being widely circulated, it was recognized as a middle school student and became a habit.
If you hear someone say that you want a medium-rare steak, you can't be wrong. You just don't understand some idioms in western food, so you serve a medium-rare steak.