No. 10,082 in Russian
бактерии
Bacteria.
In a sentence
Бактерии являются микроскопическими живыми организмами.
Bacteria are microscopic living organisms.
The word 'бактерии' is used here as the subject of the sentence, referring to bacteria in general and introducing them as the topic.
Антибиотики часто используются для уничтожения вредных бактерий.
Antibiotics are often used to kill harmful bacteria.
In this sentence, 'бактерий' is in the genitive plural case because it follows the verb 'уничтожения' (destruction of).
Некоторые бактерии полезны и помогают пищеварению.
Some bacteria are beneficial and help with digestion.
Here, 'бактерии' is used as the subject in the nominative plural case to indicate a positive aspect of certain bacteria.
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