"set upon" in Chinese (Simplified)
袭击攻击
Definition
突然并猛烈地袭击某人或某物，通常是一群人。也可以表示充满精力地开始做某事。
Usage Notes (Chinese (Simplified))
多用于文学或讲故事的场合，常指突然或一群人对某人进行攻击。偶尔可指充满干劲地开展任务。日常交流中不用于表达小吵架。
Examples
The dog was set upon by a pack of wolves.
那条狗被一群狼**袭击**了。
They were set upon as they walked home at night.
他们在晚上回家时被人**袭击**了。
The soldiers were suddenly set upon by the enemy.
士兵们突然被敌人**袭击**了。
As soon as he entered the room, he was set upon with questions from the reporters.
他一进屋，就被记者们**包围提问**。
The critics quickly set upon the movie, calling it a failure.
影评人很快**抨击**了这部电影，称其为失败。
As soon as the pizza arrived, everyone set upon it and it was gone in minutes.
披萨一到，大家就**扑上去抢**，几分钟就吃完了。