But in nature there are unexpected storms and in life unpredictable vicissitudes.
但是在本质上有想不到的风暴和在生命里无法预言的变迁。
But in nature there are always constraints because resources and energy are not unlimited.
但是自然界中总是存在种种限制，因为资源和能量不是无限的。
In recent years, many of them have been obliged to give up their nomadic lifestyle, but they continue to depend mainly on nature for their food and clothes.
近年来，他们中的许多人被迫放弃了游牧生活，但他们仍然主要依靠大自然为他们提供食物和衣服。
Significant advances have been made in the understanding of the biological and chemical nature of olfaction, but many fundamental questions have yet to be answered.
在理解嗅觉的生物学和化学性质方面已经有了重大进展，但许多基本问题仍有待回答。
Many species are similar enough that hybrid offspring are possible and may often occur in nature, but for the majority of species, this rule generally holds.
许多物种非常相似，因此有可能杂交繁衍出后代，而且这种情况可能经常在自然界中发生；但对于大多数物种来说，这一规则大体适用。
Maybe this is consistent with a change in the constants, but this would be the very first, and it would just change our view of the laws of nature.
也许这与常数变化相一致，但这是第一次，它将会改变我们对自然规律的看法。
The find helps cement the dinosaur-bird connection, but it also casts new light on the mystery of why nature invented feathers in the first place.
这一发现有助于巩固恐龙和鸟类之间的联系，但它也为自然界最初为什么会产生羽毛这一谜题提供了新的线索。
Most recognizable of the ship designs are the ship's smoke stacks, but the fourth stack was actually just artistic in nature and served no functional purpose.
烟囱是船舶最容易辨认的设计，但其实，第四个烟囱只有装饰美化作用，并没有任何的实际功能。
But a study by Sarah Brosnan and Frans de Waal of Emory University in Atlanta, Georgia, which has just been published in Nature, suggests that it is all too monkey, as well.
但是，佐治亚州亚特兰大市埃默里大学的莎拉·布鲁斯南和弗朗斯·德·瓦尔的一项研究表明，它确实是太像猴子了。这项研究近期发表在了《自然》杂志上。
But he was interested in the history of nature.
但他对自然历史很感兴趣。
Species interdependence in nature confers many benefits on the species involved, but it can also become a point of weakness when one species involved in the relationship is affected by a catastrophe.
在自然界中，物种的相互依赖给相关物种带来了许多好处，但当其中一个物种受到灾难的影响时，这种依赖也可能成为一个弱点。
Hills and mountains are often regarded as the epitome of permanence, successfully resisting the destructive forces of nature, but in fact they tend to be relatively short-lived in geological terms.
丘陵和山脉通常被认为是永恒的象征，成功抵御着自然的破坏力量，但其实它们从地质学角度讲往往是相对短暂的。
Some uses of color in nature remain unknown, but one thing is for sure, color not only makes our planet beautiful but it is also necessary for our planet to live on.
颜色在自然界的一些用途仍然未知，但有一件事是肯定的，颜色不仅使我们的星球变得美丽，也是我们的星球得以生存的必要条件。
Human bias is inevitable, but another source of bias in the representation of history has to do with the transitory nature of the materials themselves.
人类的偏见是在所难免的，但在历史的表现中，偏见的另一种来源与材料本身的短暂性有关。
Evidently this springs from some defect in their nature, but it is one not altogether easy either to diagnose of to cure.
这种情形显然源于他们本性上的某种缺陷，但是这种缺陷既不容易诊断也不容易治疗。
The replication options are similar in nature, but the replication methods used to produce each solution differ and have their unique strengths.
这两种复制在本质上是类似的，但用于产生每个解决方案的复制方法有所不同，并且各有优点。
Einstein's. God was no clockmaker, but the embodiment of reason in nature.
爱因斯坦的上帝不是钟表匠而是自然定律的化身。
Both species of fungi are rarely encountered in nature, but common in dishwashers.
发现的两种真菌在自然界都很罕见，但在洗碗机里很常见。
The isotope does occur in nature but only extremely rarely.
钋的同位素在自然界中的确存在，但是相当罕见。
Our brains seem wired to resist waste, but we are relatively unique in nature for this.
我们的头脑似乎天然地反对浪费，但在这方面，我们人类是自然界中比较独特的物种。
Parks are harder to exclude from, but are still local in nature; few people will drive 30 miles to use a park.
公园很难区分游客，但本质上仍是区域性的，因为很少人会驱车30分钟去逛个公园。
Nature wastes life, but it's not all in vain.
大自然会浪费生命，但这并不是种愚蠢的行为。
But a new analysis in the journal Nature may have solved the mystery.
但是，一份新的发表在自然杂志上的分析报告可能揭开这个奥秘。
But it's a phenomenon in human nature to be nostalgic.
但怀旧是人类本质的一种现象。
He spent a couple of years submerged in nothing but the beauty of nature itself!
有几年，他都沉浸在自然的绝美中。
Feedscrub is another service that is still in private beta, but looks very similar in nature to the previous tools that I've described.
Feedscrub是另一个依然处在内测阶段的服务，不过看起来和之前描述的工具本质上非常相似。
They are not only familiar with this or that person or group, but comprehend human nature in general.
他们不仅和这个或那个人或者团体熟识，而且理解人类天性。
Sometimes science doesn't take place in a sterile lab, with beakers and pipettes and clipboards and test tubes, but out in nature, with lots of electrical tape and one very angry crocodile.
有些时候，科学实验并不是在无菌实验室，通过烧杯、吸液管、写字夹板和试管进行的，而是在野外，利用无数绝缘胶带和一只愤怒的鳄鱼展开的。
I'd give anything if he'd say 'I love you,' but it's just not in his nature.
如果他说声‘我爱你’，我愿意付出一切，可这根本不是他的性格。
I'd give anything if he'd say 'I love you,' but it's just not in his nature.
如果他说声‘我爱你’，我愿意付出一切，可这根本不是他的性格。
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