No. 10,266 in Russian
болезнях
"Illnesses" or "diseases."
In a sentence
Он говорил о болезнях, которые передаются через контакт.
He spoke about diseases that are transmitted through contact.
The word 'болезнях' here is used to indicate 'diseases' in the prepositional case, referring to the topic of the conversation.
В книге описывается информация о редких болезнях.
The book describes information about rare diseases.
This usage involves 'болезнях' showing the prepositional case associated with the word 'болезни', indicating rare diseases as a subject of description.
На конференции обсуждалось множество тем о болезнях.
At the conference, many topics about diseases were discussed.
In this sentence, 'болезнях' appears in the prepositional case, relating to the theme of diseases as discussed subjects.
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