No. 8,573 in Russian
обязательны
"Обязательны" means "mandatory" or "required."
In a sentence
Эти правила обязательны для всех.
These rules are mandatory for everyone.
In this sentence, "обязательны" conveys the sense of something being mandatory or required.
Чтобы поступить в университет, обязательны хорошие оценки.
To enter university, good grades are required.
Here, "обязательны" is used to express a requirement or necessity.
Обязательны ли ваши присутствие на собрании?
Is your attendance at the meeting mandatory?
In this example, "обязательны" is used in an interrogative form to question whether something is obligatory.
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