v.出发，动身；解脱；装饰；抵消；使爆炸，点燃；引起
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。
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。
