请问set off 和 set out都是出发的意思.它们的区别在哪?最好举例解释!
set out和set off都有出发的意思,区别:set off更含开始(旅行、赛跑等）的意思,例：what time are you planning to set off tommorrow?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