set out,set up,set off,set about是什么意思？

Question

set out,set up,set off,set about是什么意思？问题补充：

Answer 1

set off: 出发,侧重于去某个地方

例句与用法:
If you want to catch that train we'd better set off for the station immediately.
你要是想赶上那班火车，咱们就最好马上动身去火车站。

They've set off on a journey round the world.
他们已经开始环游世界.

set out:
出发，开始，侧重于开始做某事，还有规划，展现的意思

例句与用法:
They succeeded in what they set out to do.
他们打算做的事已经做成了.

set about:
开始,着手，与set out意思相近，但set out后加不定式，即set out to do sth,而set about后加 ing形式，即set about doing sth.

例句与用法:
1. You must set about your work at once.
你必须立即开始工作。

2. Do you know how to set about going on this work?
你知道怎样着手进行这项工作吗？

Answer 2

set out出发;开始;启程;陈述;打算;装饰;陈列;测定;宣布;展示set up设立;建立;制定;创办;装配;竖立;架起;开创(记录),提出;开业;开动set off出发;动身;引爆;断开;隔开;引起;分开;衬托set about开始;着手处理;散布

Answer 3

set out 陈列,显示;动身,起程;制定 set up 创立,建立,树立;资助,扶持set off 动身,出发set about 去开始;散布(谣言等)