/wʌn/
一；一个
the number 1
一个人；任何人（泛指）
used to refer to a person in general
某一个；唯一的
used to refer to a particular person or thing
one another
互相
one by one
一个接一个
at one time
一度；曾经
I have one brother and two sisters.
我有一个哥哥和两个姐姐。
One should always be honest.
一个人应该始终保持诚实。
One day you'll understand.
总有一天你会明白的。
上一个
if
下一个
would