set out 和set off的区别

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。

这个我看了..可是解释的不是很清楚...

那下面例子谁能解释下:
Tom will set out at eight o'clock.
Nick adn i set off early in the morning.

set out 和set off的区别 set off，set out，set about，set out的区别和用法？ set off set on set out区别 辨析：set about ,set out ,set down ,set up set out 后面接深莫？ set on set off set out的用法 What't"Out of set .Out of mind" mean? set out on是什么意思呢？ set out 与 set off 有区别吗？ set up doin 和set to do