[chù fā]
detonate by contact; touch off; trigger; strike
trigger thermonuclear fusion
觸發(fā)熱核聚變
touch off a train of home thoughts; provoke nostalgic longing
觸發(fā)鄉(xiāng)思
Some slight incident may touch off a major war.
一件小事可以觸發(fā)一場(chǎng)大戰(zhàn)。