从纯粹的生物学意义上讲，恐惧始于身体系统对可能会伤害我们的事情的反应，也就是所谓的“战或逃反应”。
In a purely biological sense, fear begins with the body's system for reacting to things that can harm us—the so-called fight-or-flight response.
他们把学习科学、生物或烹饪视为同一行为的一部分——这都是学习。
They see learning about science or biology or cooking as all part of the same act—it's all learning.
关于爱情，我的理解是把我和这样或那样的生物绑在一起的欲望、情感和智慧的混合体。
Of love, I know only that mixture of desire, affection, and intelligence that binds me to this or that creature.
科学态度的本质是什么，研究和应用物理、生物、化学、地质、工程、医学或其他科学的人的态度是什么？
What is the nature of the scientific attitude, the attitude of the man or woman who studies and applies physics, biology, chemistry, geology, engineering, medicine or any other science?
人们担心宠物或野生生物会受到杀虫剂的影响。
People were concerned that pets or wildlife could be affected by the pesticides.
让我猜猜，你必须上一门科学课，但你不想学生物、化学或物理。
Let me guess, you have to take a science course and you don't want to have to deal with biology, chemistry or physics.
环保署生物杀虫剂部门主管珍妮特·安德森发给该网络的一封电子邮件表示，“没有对这种生物进行审查和/或野外测试的记录。”
An e-mail to the network from Janet Anderson, director of the EPA's bio pesticides division, says "there is no record of a review and/or clearance to field test" the organism.
与海胆或豪猪身上的尖刺相互作用的结果对任何经过的生物来说都是相当明显的。
The consequences of interacting with the array of sharp spines on a sea urchin or porcupine are pretty obvious to any creature passing by.
橡树的叶子尝起来很臭，因为它们含有丰富的单宁酸，这种化学物质会让很多生物感到不适或难以消化。
The leaves of an oak tree taste foul because they are rich in tannins, a chemical that renders them distasteful or indigestible to many organisms.
逆戟鲸，或称虎鲸，正饱受毒素生物积累作用的折磨。
Orcas, or killer whales, are afflicted by bio-accumulation of toxins.
我想我们可以先问问观众哪种汽车引擎被最早设计为使用化石或生物燃料。
I thought we could start by asking our audience what car engines were first designed to run on-fossil fuels or biofuels.
渔民们知道一年中允许捕捞的大概时间段，但是在某些日子，一个地区可能有一个或多个实地生物学家中止捕鱼活动。
The fishermen know the approximate time of year when they will be allowed to fish, but on any given day, one or more field biologists in a particular area can put a halt to fishing.
在生物医学科学的竞争中，一些以微弱劣差距掉或赢得了资助的科学家完成了研究。
In the competitive game of biomedical science, research has been done on scientists who narrowly lost or won grant money.
基因是一段被复制或重组的生物信息，这种复制或重组会传递给下一代。
A gene is a piece of biological information that gets copied or replicated, and the copy or replica is passed on to the new generation.
如果一种古代动物有看起来像鹿角的结构，古生物学家就会争论说它可能像麋鹿或驼鹿那样使用鹿角。
If an ancient animal had structures that looked like antlers, palaeontologists would argue that it probably used them as an elk or moose.
生物学上的假设包括生态变化，这些变化是由昆虫和开花植物之间的共同进化，或海洋中以海底生物为食的捕食者的进化所带来的。
Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans.
他知道一切生长或生活在荒野里的生物。
事实上，竞争对象可能是生命体所必须的任何生物或非生物因素。
Indeed, it may be for any of the factors, physical as well as biotic, that are essential for organisms.
一群自然保护生物学家提出了一个雄心勃勃的计划——或者有人会说，这是一个激进的计划——即，把大型脊椎动物或巨型动物包含在计划中，作为修复部分损害的一种方法。
As a way of repairing some of that damage, a group of conservation biologists has proposed an ambitious, or some might say, a radical plan, involving large vertebrates, or, megafauna.
长期以来，生物学家一直在争论鸟类的产蛋在生物学上是否具有很高的成本，有的理论认为产蛋对能量或营养的要求很高。
Biologists have long debated about whether egg production in birds is biologically highly costly, some theorizing that egg production is energetically or nutritionally demanding.
然而，蝗虫可以是鸟类、鸡、鸭或其他生物甚至人类的食物。
However, locusts can be food for birds, chickens, ducks or other living things, even humans.
若是遇到友善的外星智慧生物，其积极后果之一就是会将我们这个幼稚的文明置于其卵翼（或触手）之下。
One positive outcome that could arise from bumping into a friendly ETI is that it takes our fledgling race under its wing (tentacle).
它比主水体或远洋区的生物总产量要少一些。
This is less than the total biological production in the main water column, or pelagic zone.
过滤取决于薄薄的生物层的发展，该薄层称为动物神经层或去污层。
Filtration depends on the development of a thin biological layer, called the zoogleal layer or Schmutzdecke.
当制成膳食补充剂时，视黄醇稳定为乙酸视黄酯或棕榈酸视黄酯的酯衍生物。
When prepared as a dietary supplement, retinol is stabilized as the ester derivatives retinyl acetate or retinyl palmitate.
糖苷，是糖或糖的衍生物与另一类非糖物质通过糖的端基碳原子链接而成的化合物。
Glycosides are certain molecules in which a sugar part bound to some other part through its anomeric carbon to another group.
生物装配技术的目标是进行原子或分子的组装。
The biological assembly technique aims at building from the bottom up, atom by atom or molecule by molecule.
电能可以靠核裂变、水力发电、生物量、风和太阳能产生；轿车和卡车可以通过电或生物燃料运作。
Electricity can be generated by nuclear fission, hydropower, biomass, wind and solar energy; and cars and lorries can run on electricity or biofuels.
但是不像基于大豆或其他植物的生物柴油，他并不将农作物或土地从食品产品变成燃料产品。
But unlike biodiesels based on soya or other plants, it does not divert crops or land from food production into fuel production.
基因工程可以作用于植物、动物或微生物。
Genetic engineering can be done with plants, animals, or microorganisms.
应用推荐