Translation of Markierer

We drove towards the university where he studied and from there we drove to the hospital where he worked. He told me that there were hospitals for locals and for foreigners with different medical equipment and staff.
Most are just afraid of the unknown and see the unknown as a threat to their stabilty. Can one blame them? I think you can blame them. It is the fault of the ones that are scared to improve and learn.
In order to see it you have to complete a lesson. I attached a screenshot. I did not place any rating there, so that it will not demotivate some of the users, especially the fresh beginners.