Is it possible to use English in Czech?

pu1. I can hardly understand English

2017-11-17

OK

pu2. Unlike I thought, there are many countries in Europe that can't speak English at all. When I learned it in Korea, I learned that I can speak English anywhere
It's like studying hard and entering Seoul National University is a success It's like this

2017-11-17

OK

pu3. @2 I can really relate to this! I'm working really hard to learn idioms that are used in American daily life or that I understand when I know the culture well, but I don't really need anything like this unless I'm going to America... If most of them speak English as a second language, they don't need to learn much English because they use English that has a direct meaning. Even if I use idiomatic expressions, I can't understand the other person at all, especially in Europe

2017-11-17

OK