sometime
adv.
将来某个时候
We'll take our holiday sometime in August,I think.
我想我们大概会在八月放假.
过去某个时候
Our house was built sometime around 1973.
我们的房子建于1973年左右.
some time
在未来的某时,经过若干时间
I will need some time to think over your offer.
sometimes
adv.
有时,不时
sometimes rich,sometimes poor
有时富,有时穷
some times
几次