How to say in Czech: He speaks Chinese fluently.

English
speaks fluently.
Czech
On mluví plynně čínsky.
He speaks Chinese.
He speaks Chinese very well.
He speaks only a little Chinese.
Does he speak Chinese?
He does not speak Chinese.
He does not speak Chinese very well.
Does anybody here speak Chinese?
He is Chinese.
He is learning Chinese.
He is not Chinese.

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