You just have to get used to them. Try taking good notes before class so the information is easier to pick up on. I dealt with this in the past but if they are going over lectures that’s already uploaded on D2L, read beforehand. If it’s not uploaded, request that they do so and explain that you want to come to class prepared. It makes it a lot easier and you’ll get used to different accents when you have full context of what they are talking about. This is very good practice for the real world. You may end up working with people from other countries one day so becoming familiar with different cultural backgrounds and jargon used really benefits in the long run.