No. 4,408 in Russian
веществами
"Substances" (instrumental plural form of "вещество").
In a sentence
Портфель был наполнен какими-то странными веществами.
The briefcase was filled with some strange substances.
In this sentence, 'веществами' refers to physical or chemical materials or substances contained within a briefcase, indicating plurality and instrumental case.
Ученые проводят эксперименты с новыми веществами.
Scientists are conducting experiments with new substances.
Here, 'веществами' highlights the objects of scientific study or experimentation, functioning as the instrumental case to denote the usage or manipulation of the substances.
Несколько студентов интересовались токсичными веществами.
Several students were interested in toxic substances.
In this context, 'веществами' implies the types of substances being referenced, particularly toxic ones, and utilizes the instrumental case showing the focus of their interest.
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