How to say in Czech: They speak Russian very well.

English
speak very well.
Czech
Oni mluví rusky velmi dobře.
They do not speak Russian very well.
Do they speak Russian?
They do not speak Russian.
They speak only a little Russian.
They speak Russian.
They speak Russian fluently.
Does anybody here speak Russian?
Your Russian is very good.
Your Russian is getting better.
How good is your Russian?

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