A

US /eɪ/
UK /eɪ/
"A" picture
1.

一個, 一

used when referring to someone or something for the first time in a text or conversation

:
•
I saw a dog in the park.
我在公園裡看到一隻狗。
•
She wants to buy a new car.
她想買一輛新車。
:
an
:
the
2.

一個, 一種

used to indicate membership of a class of people or things

:
•
He is a doctor.
他是一名醫生。
•
That's a beautiful painting.
那是一幅美麗的畫。
:
an
:
the
1.

A, 字母A

the first letter of the English alphabet

:
•
The word 'apple' starts with the letter A.
單詞'apple'以字母A開頭。
•
Write a capital A.
寫一個大寫字母A。