start for,start out for,start off for,set out for,set off for意思一样吗?

start as start with start out 是什么意思? start for,start out for,start off for,set out for,set off for意思一样吗? start up;start out;start off; start on start up;start out;start off; start on start start , start start start start start 请问start out start out意思 start up 和start out的区别? start off怎么用start off start out怎么用， start out 和leave for的区别还有set off start off for start from 某地 for