set off的意思是：v.出发，动身；解脱；装饰；抵消；使爆炸，点燃；引起。set off的例句是用作动词(v.)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。set off【近义词】actuate促使。
一、参考翻译点此查看set off的详细内容
二、网络解释
1. 隔开：后一部分的所有代码被一个if语句隔开(setoff) 了,这个if语句检查__name__这个东西是不是等于__main__. 再说一次,双下划线意味着特殊的名字. 使用if的原因是因为每一个文件都有可能在另外的程序里被用作库模块(马上就会讲到模块).
2. 出发：ringoff挂断电话 |setoff出发 | seeoff送行
3.
3. 引起：5. show up露面;出席 | 6.setoff引起 | 8. a piece of一片;一块;一张
4. 激起：a costume party一个服装聚会 |setoff 激起 | get married 结婚
三、例句
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。
What time are you planning to set off tomorrow?
你打算明天几点钟启程?
They've set off on a journey round the world.
他们已经开始环游世界。
He'll have to circle the mark for 360°more before he can set himself free.
他就得多绕航标360°才能解脱。
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。
He set these heavy expenses off against his increase in salary.
他的这些沉重的开销抵消了增加的工资。
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。
The first atom bomb was set off over Hiroshima.
第一颗原子弹是在广岛上空爆炸的。
The burning gas was easy to set off an explosion.
燃烧的煤气容易引起爆炸。
四、词汇搭配
set off的相关近义词
actuate、trigger、instigate、depart、explode、touch off、spark、detonate、activate、trigger off、stir up、incite、offset、blow up、set forth、trip、take off、part、spark off、start out、cancel、set out、start、bring out
set off的相关临近词
SETAF、set、set pair situation、set a book in type、set-of-support、set up instruction、set a world record、set a plan on foot、set characteristic、set an example for、set to ones mettle、set the rear sight