The dead are gone and they cannot defend themselves.

逝者已逝，他们无法保护自己。

youdao

Aggression is a kind of innate survival mechanism, an instinct for self preservation, that allows animals to defend themselves from threats to their existence.

攻击性是一种天生的生存机制，一种自我保护的本能，使动物能够保护自己不受生存威胁。

youdao

The researchers explained that the study demonstrated when we are in a novel environment the brain partly remains alert so that humans can defend themselves against any potential danger.

研究人员解释说，这项研究表明当我们处于新环境，大脑会保持部分警觉，这样人类就能在各种潜在的危险中保护自己。

youdao

If it is compromised, then the bees could not defend themselves against pesticides or fungal infections or bacteria or poor nutrition.

VOA: special.2009.09.15

Everybody who could ran up to the acropolis to defend themselves.

届时每个人都可以去卫城来进行防御

耶鲁公开课 - 古希腊历史简介课程节选

In the case of Nimes, N-I-M-E-S, which was largely a Protestant town, they knocked down the wall so the Protestants of Nimes could not defend themselves against this all-conquering Catholic monarch.

以尼姆为例,那儿曾经是一座新教徒的城市,但统治者们拆毁了围墙,所以新教徒们再也无法对抗,所向无敌的天主教统治者了

耶鲁公开课 - 欧洲文明课程节选

They only felt safe in so far as they could defend themselves with their makeshift weapons.

CNN: MEDAN'S MADNESS

It focuses on a small colony of people struggling to defend themselves against the virals.

FORBES: Vampires, Literature And The Culture Of Viral Panic

Modern victims of bullying have a much broader arsenal of tools with which to defend themselves.

FORBES: Jimmy Wong Saves the Internet