A few examples:
1. That kind of thing really sets me off !
2. The boys were setting firecrackers off all afternoon.
3. We set off for China three hours late.

setout:
出发,开始,侧重于开始做某事,还有规划,展现的意思
They succeeded in what theysetoutto do.
他们打算做的事已经做成了.
setoff: 出发,侧
重于去某个地方
If you want to catch that train we'd bettersetofffor 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'vesetoffon a journey round the world.
他们已经开始环游www.souquanme.com世界.
Setup :R搜趣网05;
建立；准备； 安排；引起
‍
1.Setupafund;convertintoadebt.设立资金；转为债务.
Setupstraighteningbenchwithstraighteningset.
使用校正套件设置校正平台.

setabout:
开始,着手,与setout意思相近,但setout后加不定式,即setoutto do sth,而setabout后加 ing形式,即setaboutdoing sth.
1. You mustsetaboutyour work at once.
你必须立即开始工作.
2. Do you know how tosetaboutgoing on this work?
你知道怎样着手进行这项工作吗?

1 He has been away form his hometown for ten years. 2 I will be back home in half an hour ,don't worry .3 Sorry,Tom isn't at home at present , he is out .4 Lily is sick and has to be in home .5 Our holiday will be over in September but my homework hasn't been completed。6 The film directed by Zhangyimou will be on in the end of this mouth . 7 At last , the computer company decided that she is up to this position . 1 they’ve set off on a journey round //www.souquanme.comthe world.他们已经开始环游世界。
2 The new bookstore has set up a night sales system

Man goes into the noisy crowd to drown his own clamour o搜趣网f silence.人走进熙攘的人群，是为了掩盖他自己滔滔的沉默。
You remind me of your father
They set off for the West in a covered wagon他们搭乘有篷的马车前往西部。
It is obvious that it is nothing to do with success.幸福显然同成功毫不相干。