引起，触发某事
1. 开(炮等触发：too...to... 太...以致不能... | touch off 开(炮等触发 | touch on 关系到,涉及到
2. 触发：touch ground 触及实质 | touch off 触发 | touch on 略微谈到
3. 放火火灾：totebox 运输斗 | touch-off 放火火灾 | touching test 触摸测试
4. 爆炸：taps熄灯号 | touch off爆炸 | tough fighting激烈战斗
1. 引发;触发;引起
If something touches off a situation or series of events, it causes it to start happening.
e.g. Is the massacre likely to touch off a new round of violence?
大屠杀有可能触发新一轮的暴行吗？