Second, because only male deer rub, the buck rub and its associated chemicals indicate the sex of the deer producing the rub.
第二，因为只有雄鹿会做出摩擦动作，摩擦动作和与之相关的化学物质表明了制造擦痕的鹿的性别。
The hotel is in the middle of nowhere and there lies the rub. We don't have a car.
难就难在旅馆很偏远，我们又没有汽车。
Buck rubs also have a scent produced by glands in the foreheads of deer that is transferred to the tree when the rub is made.
雄鹿摩擦都有一种由雄鹿前额上的腺体产生的气味，这种气味在制造擦痕时就涂抹到了树上。
First, the chemicals deposited on the rub provide information on the individual identity of an animal; no two mammals produce the same scent.
首先，擦痕上的化学物质提供了动物的个体特征信息；没有两种哺乳动物会产生相同的气味。
The rub is, if the vast majority of people increasingly agree that climate change is a global emergency, there's far less agreement on how to fix it.
问题是，如果绝大多数人越来越认同气候变化是一个全球性的紧急事件，那么在如何解决这个问题上就没有那么多的共识了。
说到这儿又有问题了。
The rub was that both W and Z are heavy.
难点在于，W和Z都是重粒子。
障碍就在这。
And there's the rub. There are no rules or even societal norms for friendship breakups.
问题是，对于朋友之间的分手，并没有什么规则可言，甚至没有社交惯例可循。
And there's the rub: you have to open your mind to going places you never expected to go.
关在在于，你得敞开胸怀，愿意去往任何你不曾预想过的地方。
And there's the rub: to use SELinux effectively, you need to have a good security policy for SELinux to enforce.
那就有了困难：为了使SELinux有效，您需要有一个好的安全策略来由SELinux执行。
But here's the rub: That stress, says Robertson, can actually help us perform better if we know how to harness it.
但难点在于：罗伯森表示，压力实际上可以帮助我们表现得更好，前提是我们知道如何驾驭压力。
Now here's the rub: How many of these are appropriately utilizing the form language of utility and how many are not?
现在，这儿有一个难题：这些设计中有多少是适当地利用了造型语言来表达了实用的特征，有多少没有呢？
So the rub here is that while Siri can do a great many things, it's not always the simplest way to do those things.
我想说的是，虽然Siri可以做很多重要的事，但用Siri也许不是最简单的方式。
The RUB researchers obtained detailed 3D chemical maps which do not require the introduction of additional labels or markers.
鲁尔波鸿大学的研究人员得到了一份详细的3D化学地图，并且不再需要引入额外的标签和标记。
But here's the rub: unless you tell us exactly what company you're working for, it doesn't come across as a really compelling opportunity.
障碍在这里：除非你把公司的名字说出来，否则对我们来说就不是一个好机会。
The lines of wind-sculpted sand are characteristic of immense sand deserts, or sand seas, and the Rub' al Khali is the largest desert of this type in the world.
在一些广袤的沙漠或沙海里常常有这种被风雕刻的痕迹，而鲁卜哈利沙漠是这类沙漠中面积最大的。
A new model of rub impact force considering varied rotating speed was derived and the rub impact response of a rotor system with initial bending and asymmetric stiffness was analyzed.
建立了考虑转子转速的新的碰磨力模型，分析了具有初始弯曲和刚度不对称转子系统的碰磨响应，得到了系统参数对系统分叉和混沌响应的影响。
There is only one difference between an old man and a young man: the young man has a glories future before him and the old one has a splendid future behind him and maybe that is where the rub is.
青年人和老年人唯一的不同是，青年人有着光明的未来，而老年人只有昔日美好的过去，或许这就是障碍之所在。
Rub the fingertips of one hand into the palm of the other, then reverse.
把一只手的指尖放在另一只手的手掌里搓洗，然后换手再做一遍。
The player proceeded to rub his gloves across his wet T-shirt and then exclaimed.
球员继续用手套在湿T恤上擦了擦，然后大叫起来。
A conspicuous sign indicating the presence of white-tailed deer in a woodlot is a buck rub.
白尾鹿出没于一片林地的明显标志是“擦鹿”。
Just rub the cut side of half a lemon all over them and buff with a soft cloth.
只需用半个柠檬的切面擦拭它们全部，然后用软布擦亮即可。
You may need to give the floor a rub-down with glasspaper.
你可能得用玻璃砂纸打磨一下地板。
You may need to give the floor a rub-down with glasspaper.
你可能得用玻璃砂纸打磨一下地板。
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