No. 951 in Vietnamese
ai
"Who" or "anyone."
In a sentence
Ai đã để cuốn sách này ở đây?
Who left this book here?
In this sentence, 'ai' functions as an interrogative pronoun expressing enquiry about an unknown person or subject.
Tôi không biết ai đã làm điều đó.
I don't know who did that.
Here, 'ai' is used as an indefinite pronoun referring to a person not specifically identified.
Ai cũng muốn sống hạnh phúc.
Everyone wants to live happily.
In this context, 'ai' as part of 'ai cũng' generalizes to include all people, equivalent to 'everyone'.
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