她说，承认火在人类生活中必然存在这一态度，对于制定确保火的使用尽可能安全的法律、政策以及惯例来说至关重要。

Acknowledging fire's inevitable presence in human life is an attitude crucial to developing the laws, policies, and practices that make it as safe as possible, she says.

youdao

纷繁的原因后边必然存在更深更简单的原因存在。

Behind the complicated reasons there must be simple ones.

youdao

即使穷国获得了帮助，怎样使用也必然存在分歧。

Even if poor countries do get help, there are bound to be fights over how to use it.

youdao

You can only do that by balancing competitive desires that can be thought of as evil; faction was what they were talking about and everybody thought faction was bad, but it was inevitable.

你仅仅通过平衡那些被视为罪恶的,竞争性欲望就可以达到此目的,也就是,大家所谓的派系,每个人都认为派系是不好的,但它是必然存在的

耶鲁公开课 - 古希腊历史简介课程节选