1、trigger
引爆;启动;触发
The thieves must have deliberately triggered the alarm and hidden inside the house.
盗贼肯定是故意触发了报警器，然后躲在房子里。
The one thousand pound bomb was triggered by a wire.
那颗重达 1,000 磅的炸弹是由一根导线引爆的。
引起;发动;促使
the incident which triggered the outbreak of the First World War.
导致第一次世界大战爆发的事件
The current recession was triggered by a slump in consumer spending
目前的经济衰退是由消费支出骤跌引起的。
诱因;起因;引发…的原因
Stress may act as a trigger for these illnesses.
压力可能会成为引发这些疾病的原因。
2、impact
影响;作用
They say they expect the meeting to have a marked impact on the future of the country.
他们称他们预期会议对国家的未来会产生显著影响。
The major impact of this epidemic worldwide is yet to come.
这种传染病在世界范围内的重大影响还未完全显现。
撞击;碰撞;撞击力
The plane is destroyed, a complete wreck: the pilot must have died on impact.
飞机遭到毁坏,完全成了一堆残骸：飞行员肯定死于撞击。
A running track should be capable of absorbing the impact of a runner's foot landing on it.
跑道应该能够吸收奔跑者踩踏地面时产生的撞击力。
(对…)产生影响
Such schemes mean little unless they impact on people.
这些计划没什么意义,除非它们对人民产生影响。
That, in turn would increase pressure for higher wages and that, in turn, would impact on inflation and competition.
那样就会增加工资上涨的压力,而那样又会对通货膨胀和竞争产生影响。