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。
另外，set out to do sth是开始／着手干某事
而， set sb off doing sth是使某人开始干某事
set for sth
1. 有可能的，做好准备的
set sth (for sb)
1. 布置；分配；指派
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set out: [ .set aut ]
出发
v. 规划,展现
Examples:
1. She set out to break the world land speed record.
她决心要打破陆上速度的世界纪录
2. We'll need to set out chairs for the meeting.
我们要为会议摆好椅子.
3. She set out the pieces on the chess-board.
她把国际象棋的棋子摆在棋盘上了.
4. Her work is always very well set out.
她的工作总是很有条理.
5. They succeeded in what they set out to do.
他们打算做的事已经做成了.
6. They set out on the last stage of their journey.
他们开始了旅行的最后一程.
7. She set out at dawn.
她天一亮就动身了.
8. She set out the reasons for her resignation in a long letter.
她在一封长信里阐明了辞职原因.
set off: [ .set 'ɔf ]
出发
Examples:
1. 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。
2. That jumper sets off the blue of her eyes.
在这件毛衣衬托下, 她眼睛的蓝色显得更漂亮了.
3. They've set off on a journey round the world.
他们已经开始环游世界.
4. Do be careful with those fireworks; the slightest spark could set them off.
这些烟火要格外小心, 稍有火星就能引起爆炸.
5. Don't set him off talking politics or he'll go on all evening.
可别让他谈起政治来, 要不然他一谈就得一个晚上.
6. Her imitations always set me off (laughing).
她模仿别人的动作, 每次都把我逗得哈哈大笑.
7. What time are you planning to set off tomorrow?
你打算明天几点钟启程?
8. Panic on the stock market set off a wave of selling.
股票市场上人心惶惶, 掀起抛售浪潮.
请放心使用
有问题的话请追问
满意请及时采纳，谢谢
set out
动身, 出发
A visitor arrived just as we were setting out for the airport.
我们正要前往机场时来了一位客人。
着手, 开始
The government has set out to make many needed reforms.
政府开始进行许多必要的改革。
安排, 组织
They set out the chairs for the meeting in rows of ten.
他们摆好会议的坐椅, 每排十把椅子。
set off
出发, 动身
He proposed to set off immediately.
他建议立即动身。
(使)开始; 引起
She had stopped crying but his shouting set her off again.
她已经不哭了, 但是他的大声喊叫使她又哭了起来。
点燃, 爆炸
Be careful that you don't set the fireworks off by mistake.
当心点, 别弄错了引起那些爆竹爆炸。
set for
为…而安排(设定）
She said she met the goals she set for herself in the novel "Jazz" and that it had the finest writing and ideas.
她说她在小说“爵士”中完成了自己设定的预期目标，小说拥有出色的文笔和思想。