Avoiding disaster requires a constant, firm grip on mental acuity.

避免失败需要持续、坚定地控制精神敏锐度。

That those who believe in an afterlife ascribe mental acuity to the dead is hardly surprising.

相信来世的人认为死人仍有精神活动，这一点都不奇怪。

Trump has attempted to discourage people from voting for Biden by questioning his mental acuity.

特朗普试图通过质疑拜登的精神敏锐性来阻止人们给拜登投票。

Biden who is 81 had such dismal performance that people questioned his mental acuity.

81岁的拜登的表现如此惨淡，以至于人们质疑他的精神敏锐度。

In the most prime examples of mental acuity that we've come to know and learn about in school。

在学校里，我们知道的精神敏锐度较高的个体中。

Indeed, any reputation I have for mental acuity and sharpness comes in truth, from the extraordinary contrast John so selflessly provides.

的确，大家都知道我精神敏锐。事实上，这不过是和约翰对比出来的，约翰无私地提供了如此强烈的对比。

That score for the dead David was surprising enough, suggesting as it did a considerable amount of mental acuity in the dead.

死去的大卫得到这样的分数已经令人甚感惊奇了，因为这表明死者大卫的心智仍相当敏锐。

Mental acuity and common sense rarely come in the same package.

再聪明的人也逃不出私人感情的陷阱。

Are you monitoring your circadian rhythms in order to identify your periods of maximum mental acuity? I did that one summer. Ah, youth.

你是在监控你的生理节奏以确定你脑部活动最旺盛的时段吗 我曾经在某个暑假试过 美好的童年啊。