袭击，突然袭击：指突然、意外地袭击某人或某物。
find unexpectedly
同义词： strike / come upon / light upon / chance upon / come across / chance on / happen upon / attain / discover
fall on 开始(行动); 进攻；落在; 适逢; (节日)正当；遭受, 遭遇；偶然碰到[发现]; 偶然想到 fall upon 开始(行动); 进攻；落在; 适逢; (节日)正当；遭受, 遭遇；偶然碰到[发现]; 偶然想到 fall out 争吵; 闹纠纷；结果(是)；【军】离队; 原地解散 ..
开始行动，进攻
She gave him no rest, and said she would take care no light should fall upon him.
她没有给他任何余地，并说她会注意不让光落在他身上。
Thanks to an exhausted and cranky state, for which there is no prospect of dramatic reform, much of the job of development will fall upon the private sector.
由于疲惫和暴躁的状态，并无大幅改革的前景，大部分的工作将落在私人部门的发展。
So, sometimes, God lets a stinging blow fall upon your life.
有时，在你的生活中，神也把你猛击一下。
At the same time he heard and felt the fall of something upon the floor.
VOA : special.2009.10.31
Just as your lover's caress brings you to orgasm, your eyes happen to fall upon a shoe.
正当情人的爱抚使你进入高潮的时候，你的目光恰巧落在了鞋子上。
心理学导论课程节选 : 耶鲁公开课
He notes: When we see a stroke aimed and just ready to fall upon the leg or arm of another person, we naturally shrink and draw back our own leg or arm and when it does fall we feel it in some measure and are hurt by it as well as the sufferer.
他说过，当我们看到有人要打,别一个人的腿或手臂，我们会不由自主的畏缩，手脚拢起来,当这一下打下来，某种程度上来说,我们会感受到和被打者一样的疼痛。
心理学导论课程节选 : 耶鲁公开课
We breathed again - it meant that, mercifully for us, they would fall upon somebody else.
Save those in dire need, who continue helping to save others and many thanks will fall upon thee.
What happens decades from now when the modern-day Goths fall upon our civilization and take out our power grid?
FORBES: Lucretius's Legacy Depended On The Toughness Of Vellum. What Will Save Ours?