a

một (đếm được)

used before singular countable nouns when the noun refers to any person or thing of that type, but not a particular one

• a + singular countable noun

Collocations a book · a car

• I saw a cat in the garden.

  Tôi thấy một con mèo trong vườn.

một (đếm được)

used before singular countable nouns to refer to one of them, but not a particular one

• a + singular countable noun

Collocations a cup of tea · a slice of cake

• Would you like a coffee?

  Bạn có muốn một tách cà phê không?

một (đếm được)

used before singular countable nouns to refer to something that has the quality or characteristic of being a particular thing

• a + singular countable noun

Collocations a good idea · a nice person

• It's a great opportunity.

  Đó là một cơ hội tuyệt vời.

một (đếm được)

used before singular countable nouns to refer to something that is one of its kind, but not a particular one

• a + singular countable noun

Collocations a kind of · a type of

• There are a lot of different kinds of music.

  Có rất nhiều loại nhạc khác nhau.

một (đếm được)

used before singular countable nouns to refer to something that is single or individual, but not a particular one

• a + singular countable noun

Collocations a single room · a single ticket

• I need a single bed.

  Tôi cần một chiếc giường đơn.

một (đếm được)

used before singular countable nouns to refer to something that is unique or one of its kind, but not a particular one

• a + singular countable noun

Collocations a unique opportunity · a one-of-a-kind experience

• This is a once-in-a-lifetime chance.

  Đây là cơ hội một lần trong đời.

một (đếm được)

used before singular countable nouns to refer to something that is individual or separate, but not a particular one

• a + singular countable noun

Collocations a separate room · a different view

• She has a different opinion.

  Cô ấy có một quan điểm khác.

một (đếm được)

used before singular countable nouns to refer to something that is indefinite or not specific, but not a particular one

• a + singular countable noun

Collocations an indefinite period of time · an unspecified amount

• There is an indefinite number of possibilities.

  Có một số lượng không xác định các khả năng.