How to say in Czech: They are old friends.

English
are old friends.
Czech
Oni jsou staří známí.
literally “They are old acquaintances.”
I am here with friends.
They are old.
Are they not too old for that?
How old are they?
They are not old enough.
They are not old enough for her.
They are not old enough for that.
They are not too old for her yet.
They are not too old for that yet.
They are not too old yet.

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