touch off
phrasal verbtouch something off
- to make something begin, especially a difficult or violent situation
触发,引发,引起(困难或暴力的局面) - The blaze was touched off by lightning.
这场大火是由闪电引起的。 - Her comments touched off a wave of protests.
她的评论引发了一波抗议。
- The blaze was touched off by lightning.