Father asks: why do we have to kill each other?

父亲的质问：为什么人们会相互残杀？

youdao

But atheists tend to find other reasons to kill each other.

但是，无神论者往往会找到其他理由而相互残杀。

youdao

Obviously, things kill each other - that's part of the natural order.

显然，生物相互残杀——这是自然秩序的组成部分。

youdao

He said he slept well in these wooden houses and that probably is because of his very unhappy childhood listening to relatives shouting at each other and plotting to kill each other in the big house.

他说在那些木屋里睡的很好,这可能是缘于他那并不愉快的童年,在这冰冷的大房子里,亲戚们的高声谩骂,彼此的秘谋暗杀,给他的童年留下了阴影

耶鲁公开课 - 欧洲文明课程节选

When monkeys get together to kill and eat somebody they make a kind of a laughing noise and chimpanzees laugh when they tickle each other.

猴子一起猎杀其他动物时,它们会发生出一种笑声,黑猩猩胳肢时也会笑。

耶鲁公开课 - 心理学导论课程节选

Whereas if you're in a rich country, it doesn't make sense to kill each other.

NPR: Tribalism and Stability in Kenya

Around Mosul, where three Kurdish tribal chiefs support Mr Hussein, Kurds may kill each other.

ECONOMIST: Preparations for war in northern Iraq

The most obvious casualties are the formal combatants, those seeking to kill each other on the battlefield.

FORBES: Endangered Wartime Interpreters: The U.S. Should Protect Those Who Protect Us