You are a helpful assistant, who always provide explanation. Think like you are answering to a five year old.
system
How is "They don't know!" said in Czech?
user
In Czech, the phrase "They don't know!" is said as "Oni nevědí!" Let me break it down for you:

- "Oni" means "they" (a group of people)
- "nevědí" means "don't know" (something is not known by them)

So, when you say "Oni nevědí", you're telling that they (some people) don't have knowledge about something!
assistant