How to say over and above (some amount)/beyond in Chinese 开外

两地相距六十里开外 ( The two places are 60 miles apart )

老者的年纪总有七十开外了 ( The old man is always seventy years old )

大雾弥漫，五步开外，就什么也看不清了。 ( The fog was so thick that five steps away, nothing was clear. )

她已经四十开外，依旧独身。 ( She was forty years away and still single. )