trigger

A man pointed a gun at them and pulled the trigger.

一个男人用枪指着他们，扣动了扳机。

Stress may act as a trigger for these illnesses.

压力也许是引发这些疾病的一个原因。

Marketing director Jack O'Hern explains that the company has a relatively young workforce, many of whom are parents: "One of the triggers was when one of our tax managers returned from maternity leave."

营销总监杰克·奥赫恩解释，该公司的员工队伍相对年轻，其中许多人已经为人父母：“其中一个导火索在我们的一位税务经理休完产假回来时出现。”

They need trigger devices for nuclear weapons.

他们需要核武器的引爆装置。

Unresolved or unacknowledged fears can trigger sleepwalking.

未解决或未被注意的恐惧感会引发梦游。

In the process, he triggered upheavals in computing, music, telecoms and the news business that were painful for incumbent firms but welcomed by millions of consumers.

在这个过程中，他引发了计算机、音乐、电信和新闻行业的剧变，这些变动对现有公司来说是痛苦的，但却受到了数百万消费者的欢迎。

It is argued, stripping cartons of their branding will trigger no mass movement to quit.

有人认为，剥离纸板箱上的品牌标识不会引发大规模的退出运动。