No. 130 in Russian
тех
The word "тех" is the genitive plural form of "тот," meaning "those" in English.
In a sentence
Я заинтересовался научными трудами тех учёных, которые работают над экологическими проектами.
I became interested in the scientific works of those scientists who are working on environmental projects.
The word "тех" is used in its genitive plural form to indicate possession or association with 'учёные' (scientists).
Мои друзья были среди тех, кто поддержал эту инициативу.
My friends were among those who supported this initiative.
Here, "тех" refers to a specific group of people ('those') in its genitive plural form, showing relation to the verb 'поддержал' (supported).
Трудности и испытания часто делают нас сильнее, и мы должны помнить об этом в тех моментах, когда сталкиваемся с неприятностями.
Difficulties and trials often make us stronger, and we should remember this in those moments when we face troubles.
In this sentence, "тех" modifies ‘моментах’ (moments) in its genitive plural form, specifying which moments are being referred to.
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