touch off

动词 touch off:

1. put in motion or move to act
   同义词：trip, actuate, trigger, activate, set off, spark off, spark, trigger off

1. A spark touched off the gunpowder.
   一粒火星引起了火药爆炸。
2. Some slight incident may touch off a major war.
   某个小事件可能会引发大战争。
3. The remark touched off a heated controversy.
   这句话引起了热烈的争论。
4. Michael's comments touched off a discussion about religion.
   迈克尔的评论引起了关于宗教的讨论。