20- years' time跟20 years' time有什么区别?

20- years' time跟20 years' time有什么区别? in 20-year time和in 20 years' time区别 请问：in a few years' time和in a few years有什么区别 in ten years' time 和 in ten years 有什么区别,请给例句 after ten years 和after ten years time 有什么区别 请问：in a few years' time和in a few year's time有什么区别 in+一段时间's + time 与 in + 一段时间有什么区别?如in two years' time & in t 请问：in a few years' time和in a few year's有什么区别 请教下20 years late.20 years ago.20years later.有什么区别? pass the time跟 kill time有什么区别? in five years' time 5 years time 歌词