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1·If these great cats become extinct, the smaller animals they prey upon will overpopulate the forests.

如果这些大型猫科动物灭绝了，那么它们捕食的小型动物将会使森林中物种的密度过高。

2·The larvae prey upon small aphids.

这种幼虫以小蚜虫为食。

3·Stronger animals prey upon weaker ones.

强大的动物捕食弱小的动物。

4·So it was easy to prey upon and loot them.

因此，掠夺和洗劫变得轻而易举。

5·The Internet can be full of dark, scary people who prey upon people's naivety and innocence.

互联网上可能充斥着各种阴森恐怖的人，他们专门利用人们的天真无邪。

6·Large bugs in the Lethocerinae family have been known to prey upon small vertebrates including fish and frogs.

我们知道Lethocerinae科(半翅负子蝽科昆虫的一类)的大型昆虫会捕食包括鱼和蛙类在内的小型脊椎动物。

7·The flame that in its grosser composition has the taint of earth may prey upon the breast that gives it shelter;

爱的火焰，由于其中粗俗的部分受到世俗的污染，所以它可能会折磨庇护它的胸膛；

8·A qolf resolved to disguise himself in order that he might prey upon a flock of sheep without fear of detection.

为了不被察觉地捕食一群羊，狼下决心要伪装自己。

9·Unfortunately, since this is not well known, there are people who inadvertently or purposely prey upon the fears of parents.

但不幸的是，不是所有的人都明白以上的道理，他们有意无意的引起了宝宝父母们的恐慌。

10·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，狒狒通常会与亲属建立亲密的关系，不过由于狮子和豹子的捕食，使得这种关系的稳定性含有一定的运气成分。

捕食

1·If these great cats become extinct, the smaller animals they prey upon will overpopulate the forests.

如果这些大型猫科动物灭绝了，那么它们捕食的小型动物将会使森林中物种的密度过高。

2·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，狒狒通常会与亲属建立亲密的关系，不过由于狮子和豹子的捕食，使得这种关系的稳定性含有一定的运气成分。

3·Stronger animals prey upon weaker ones.

强大的动物捕食弱小的动物。

4·A qolf resolved to disguise himself in order that he might prey upon a flock of sheep without fear of detection.

为了不被察觉地捕食一群羊，狼下决心要伪装自己。

掠夺

1·So it was easy to prey upon and loot them.

因此，掠夺和洗劫变得轻而易举。