crucial中等

But demonstrating the efficacy of science will be crucial if we are to solve humanity’s greatest challenges.

但如果我们要解决人类面临的最大挑战，展示科学的效用将至关重要。

are crucial to humans’ mental wellbeing.

对人类心理健康至关重要。

And it’s a reminder that the EPA’s involvement in the Chesapeake Bay Program has long been crucial as the means to transcend the influence of deep-pocketed special interests in neighboring states.

这也提醒我们，长期以来，环保署参与“切萨皮克湾计划”至关重要，它是摆脱邻近各州财力雄厚的特殊利益集团影响的手段。

New research suggests that smell is a crucial factor in guiding elephants — and probably other herbivores — to the best food resources.

新的研究表明，嗅觉是引导大象——很可能还有其他食草动物——找到最佳食物资源的关键因素。

The zoology program at my university attracts students for whom zoo visits were the crucial formative experience that led them to major in biological sciences.

我所在大学的动物学专业吸引了这样一些学生：参观动物园是他们关键的成长经历，正是这一经历促使他们主修生物科学。

But that doesn’t mean crucial ethical issues involving AI aren’t at hand.

但这并不意味着与人工智能相关的关键伦理问题还没有到来。