prey upon

基本解释

Large bugs in the Lethocerinae family have been known to prey upon small vertebrates including fish and frogs.
我們知道Lethocerinae科（半翅負子蝽科崑蟲的一類）的大型崑蟲會捕食包括魚和蛙類在內的小型脊椎動物。
Baboons most often form close bonds with relatives, the researchers said, and the stability of those connections is partly a matter of luck since lions and leopards often prey upon baboons.
研究者表示，狒狒通常會與親屬建立親密的關系，不過由於獅子和豹子的捕食，使得這種關系的穩定性含有一定的運氣成分。
Within our own communities, those who seek to recruit and radicalize individuals will often try to prey upon isolation and alienation.
在我們國家，那些促使人激進的行動往往會受到孤立和疏遠。

It seemed to me also that every living African, whether in good or ill health, is prey to many enemies of health that would interact one upon the other in many ways within one human body, Critics feared if President Mbeki appeared to doubt the link between HIV and the disease, people would not practice safe sex and use condoms.

Almost all of these guys are retail brokers dressed up and sent out into the world to prey upon pensions.
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Desperate people are willing to do almost anything when catastrophe strikes — and these scamsters prey upon them like buzzards.
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This open-ended or unlimited fee structure is common among broker-consultants at the large wirehouses who tend to prey upon smaller funds.
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