to spark off
[phrase form: spark]
01
引发, 激起
to start an action or reaction
例子
His speech unintentionally sparked off a heated debate among the participants.
他的演讲无意中在参与者中引发了一场激烈的辩论。
The news report sparked off a series of investigations into the alleged corruption.
新闻报道引发了一系列对涉嫌腐败的调查。
