set off

v.出发, 解脱, 装饰, 抵消, 使爆炸

例句与用法：

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。

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?

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。

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。

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。

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。

They've set off on a journey round the world.

他们已经开始环游世界。

详细释义：

1. 出发, 动身

They set off in search of the lost child.

他们出发寻找失踪的孩子。

2. 使爆炸