prey upon的用法和样例：
例句
用作及物动词 (vt.)
- As a tiger stalks his prey, they hunted him.
他们追捕他犹如猛虎捕食。 - Stronger animals prey upon weaker ones.
强大的动物捕食弱小的动物。 - Instead, he wants to throw money at social problems and slap more taxes on the rich, and he is using his oratorical powers to prey on people's fears.
相反，他想能把更多的钱用于解决社会问题，让富人交更多的税，他那雄辩的力量是建立在人们的担忧之上。 - What made a father suddenly express the fear of demonic influence upon a young son who until then had been a confessed Christian?
对于这位早已被承认为基督徒的年轻人，他父亲为何突然表现出担忧，怕他受到魔的影响呢？
词汇搭配
- prey upon someone's mind 使某人苦恼,紧紧压在...
