If you don't have an ear for specific accents they start to sound very similar/the same. There are hundreds of British (or Chinese, Japanese etc) accents. But

If you don't have an ear for specific accents they start to sound very similar/the same. There are hundreds of British (or Chinese, Japanese etc) accents. But unless you are familiar with them, and often the language they speak most (as you tend to change your accent for speaking a different language) they all sound unbelievably similar.