Social media and motivation are natural enemies.

社交媒体和动力是天生的敌人。

Chinese people believe some animals are natural enemies.

中国人相信有些生肖天生相克。

Penguins have hardly any natural enemies in the Antarctic.

企鹅在南极几乎没有天敌。

It means they have no natural enemies and no one can take them down.

意思是它们没有天敌，没谁能消灭它们。

They pump out perfumes designed to attract different insects who are natural enemies to the attackers.

它们释放香气以吸引不同的昆虫，这些昆虫是攻击者的天敌。

“For the first time she no longer has natural enemies in the party, ” says Mr Altmaier.

“她第一次在党内没了对手。”奥特梅尔说。

This rabbit had no natural enemies in the Antipodes, so that it multiplied with that promiscuous abandon characteristic of rabbits.

这种兔子在澳大利亚及新西兰没有天敌，因此便以兔子所特有的杂乱交配迅猛繁殖起来。

D. The perfumes attract natural enemies.

D. 香水吸引天敌。

They have no natural enemies in foreign waters.

它们在外国海域没有天敌。

Cats and dogs have always been natural enemies.

【enemy】猫和狗是天敌。

But Zakheim says Mr.Romney does not see China as a natural enemy.

但扎克海姆说，罗姆尼先生并不认为中国是天敌。

In the petri dish, they have an ocean of breakfast and no natural enemies.

在培养皿中， 它们拥有早餐的海洋，没有天敌。

Some emit unpleasant smells to repel insects, while others release perfumes that attract natural enemies of the attackers.

有些会散发出难闻的气味来驱赶昆虫，而另一些则会释放出香水来吸引攻击者的天敌。

There is on the globe one single spot, the possessor of which is our natural and habitual enemy.

地球上只有一个地方，拥有它的人是我们天生的和惯常的敌人。

We often think of brains and brawn as natural enemies, but physical fitness is a great way to increase your IQ, but not in the way most people think.

我们通常认为脑力和体力是天敌，但体能是提高智商的好方法，但并不是大多数人想象的那样。

John considered a young master as the natural enemy of an old servant, and young people in general as a poor contrivance for carrying on the world.

约翰认为年轻的主人是老仆人的天敌， 而年轻人一般是继承世界的可怜的计谋。

Some plants pump out smelly chemicals to keep insects away. But others do double duty. They pump out perfumes designed to attract different insects who are natural enemies to the attackers.

一些植物排出有臭味的化学物质来驱赶昆虫。但其他一些植物却承担着双重职责。它们释放香气来吸引不同的昆虫，这些昆虫是攻击者的天敌。