set out 与 set off 区别在哪?

set out 与 set off 区别在哪?
set out 与 set off 区别在哪?

set out 与 set off 区别在哪?
你明天打算几点钟启程? they've set off on a journey round the world.他们已经开始环游世界.
set out意思是从某地出发上路 例：she set out at dawn.她天一亮就动身了.
一般的,set out还有陈述说明的意思,set off还有使爆炸的意思