But even for the bravest kittens, getting to the top is a tall order.

但即使是最勇敢的小猫，要爬到屋顶也是离谱的要求。

And it's this rapid-fire mutation that makes whipping up a vaccine for this set of viruses a pretty tall order.

正是这种快速的突变使得为防御病毒打疫苗成为了高的要求。

Inventing characters out of whole cloth and expecting them to stand toe-to-toe with the deep, thoughtful characters created by the original author is a tall order.

凭空创造人物，并期望他们能直面深渊，原作者创造出这些有思想的人物是艰难的过程。

That is a tall order, and the building industry makes it even taller.

这是高的要求，而建筑行业更难达到。

It was the tallest order of his life, to turn from icon-breaker to icon-maker.

这是他生命中的最高使命，他将从图像破坏者转变为图像制造者。

It's a tall order, and some past leadership contenders have already ruled themselves out.

这是项艰巨的任务，些过去的领导人竞争者已经将自己排除在外。

I'm sympathetic with the tall order of it.

我理这高要求。

Ensuring that this continues will be a tall order for the next generation at Reliance.

对于信实的下代来说，确保这种情况持续下去将是项艰巨的任务。

Organizing this conference was a tall order for me.

组织这次会议对我来说是艰巨的任务。

Taking a short, stiff horizontal spine that was adapted for climbing and trying to balance our big heads over our 26 vertebrae and our feet is a tall order.

用条短而硬的水平脊椎，要让我们更适应攀登，并让脚经过 26 段脊柱来保持这么大的头的平衡，这是高的要求。

That's a tall order, but there's a solution that partners two things: a special kind of laser-based probe called LIDAR, and a miniature version of the communications technology that keeps the internet humming, called integrated photonics.

这是项艰巨的任务，但有决方案可以让两件事结合起来： 种特殊的基于激光的探测器，叫做激光雷达（LIDAR），以及种保持互联网运转的微型通信技术，叫做集成光子学。

So in reality, expecting 1 million people to make a 33 million-mile journey over the next 30 years does seem like a very tall order indeed.

所以在现实中，期望 100 万人在未来 30 年进行 3300 万英里的旅行确实看起来是非常高的要求。

That might sound like a tall order, but I think there's a few things you and I can do about it.

这听起来可能有点难，但我觉得我们可以做些事情。

The family goes on and on, and with such diversity of features, it's no surprise that keeping them all straight can be a tall order!

这大家族还有多品种，家族成员有许多不同的特征，把它们搞清楚无疑是棘手的问题。

We usually think of evolution as a slow process, so evolving fast enough to keep up with urbanization may seem like a tall order.

我们通常认为进化是漫长的过程，因此进化速度能赶上城市化的脚步似乎不是件简单的事。但当巨大的挑战突然出现时，不寻常。

And that's a very tall order to reach that benchmark to convict Trump. So, it's still a big question to remain to be seen.

要达到定罪特朗普的基准是非常艰巨的任务。因此，这仍是有待观察的重要问题。

It's from these kinds of fragmentary pieces that you're trying to work out the histories of entire species. It's quite a tall order.

“你就是在根据这样支离破碎的东西想要归纳出整人类的历史。这是难办到的事。

But Fitz, he's often spotted just dozing off and keeping his eyes open is a tall order, must be stretching his bedtime.

但是菲茨经常被发现在打瞌睡，而且保持眼睛睁着确实是项艰巨的任务，这定延长了他的睡眠时间。

And that is kind of a tall order. So in the existing political classes, there's quite a lot of opposition to this.

这是苛刻的要求。因此在目前的政治阶层中，有相当多的人反对这种做法。

It's a tall order. Let's take just agriculture, for example, which is a sector that's been hammered during the trade war.

这是难以办到的事情。以农业为例，这部门在贸易战期间饱受摧残。