n. the smallest whole number or a numeral representing this number
n. a single person or thing
s. used of a single unit or thing; not two or more
s. having the indivisible character of a unit
n. 一(个)
pron. 一, 任何人
num. 一, 一个
a. 一致的, 完整的
1. I have one apple in my bag.
我包里有一个苹果。
2. She is the one who helped me.
她是那个帮助我的人。
3. There is only one chance to succeed.
只有一次成功的机会。