No. 15,319 in Korean
백신이다
"백신이다" means "to be a vaccine" in English.
In a sentence
이 약은 코로나19 백신이다.
This medicine is a COVID-19 vaccine.
Here, '백신이다' is used to state the identity of the subject, referring to a vaccine for COVID-19.
애완동물에게 필요한 것은 항곰팡이 백신이다.
What is needed for the pet is an antifungal vaccine.
In this case, '백신이다' is used to declare what the subject requires, emphasizing the type of vaccine involved.
이 환경에서 필요한 것은 또한 바이러스 백신이다.
In this environment, what is also needed is a virus vaccine.
'백신이다' here is used to highlight the necessity of the subject, emphasizing its relevance to the environment in the context.
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