That's true for native speakers too. I know that when I read one of his plays I am always gjancing at the glossary and notes so that I can understand che words.

对本国人来说也是一样难懂=我记得我读他的剧本时也总是翻看词汇表和注释，这样才能看懂词汇。

youdao

"So wearing a t-shirt with Che Guevara doesn't mean that I am communist, but it means that I am trendy.

VOA: standard.2009.12.16