这些山丘是冰川作用形成的。
这些袋子结实的外层材料有防撞、防雨、防尘的作用。
The bags have tough exterior materials to protect against knocks, rain, and dust.
这些措施将会对减少工业事故起重要的作用。
These measures would make a valuable contribution towards reducing industrial accidents.
蚂蚁还吃嫩叶顶端的黄色结构：这些结构富含蛋白质，除了吸引蚂蚁外似乎对树没有作用。
The ants also eat yellow structures at the tip of leaflets: these are protein rich and seem to have no function for the tree except to attract ants.
有迹象表明，多效性植物激素实际上可能通过激活酶来发挥作用，这些酶从细胞壁释放出这些更为特殊的化学信使。
There are indications that pleiotropic plant hormones may actually function by activating the enzymes that release these other, more specific chemical messengers from the cell wall.
很长一段时间里，这些圆形的蓓蕾在美国本土的饮食上有着举足轻重的作用。
These circular buds have played an essential role in the Native American diet for a long time.
蚂蚁还吃小叶顶端的黄色组织：这些结构富含蛋白质，除了吸引蚂蚁外，似乎对树没有任何其他作用。
The ants also eat yellow structures at the tip of leaflets: these are protein-rich and seem to have no function for the tree except to attract ants.
艺术家们与其他文化工作者一起发表政治声明，并在将这些声明推向公众方面发挥了关键作用。
Artists joined other cultural workers in making political statements and played a key role in taking these statements to the public.
通过在印刷品中修正语言，以及生产字典和语法书，印刷术确实在规范和稳定这些语言方面发挥了关键作用。
Printing indeed played a key role in standardizing and stabilizing these languages by fixing them in print, and producing dictionaries and grammar books.
人们不是为了装饰效果而创作了这些雕像，而是为了它们能在祭祀神灵、国王和逝者这一方面发挥主要作用。
Statues were created not for their decorative effect but to play a primary role in the cults of the gods, the king, and the dead.
无论如何庆祝这一天，这些庆祝活动的目的都是帮助每个人了解联合国及其在世界事务中发挥的重要作用。
No matter how the day is celebrated, the purpose of these celebrations is to help everyone understand the UN and the important roles it plays in world affairs.
由于杏仁核对我们的感觉有至关重要的作用，这一发现或许可以解释为什么很多人认为这些画作如此生动。
Since the amygdala plays a crucial role in our feelings, that finding might explain why many people find these pieces so moving.
这些微小的东西构成了食物链的基础，并在全球碳循环中发挥着重要作用。
These tiny things form the base of the food chain and play an important role in the global carbon cycle.
这些适应机制在它们的后代进化成陆生生物时起了很好的协助作用。
These adaptations served their descendant well as they invaded land.
这些基于时间的技术已经融入了我们的日常生活，只有当它们不起作用时，我们才会意识到我们对它们的依赖。
Integral have these time-based technologies become to day-to-day existence that our dependency on them is recognised only when they fail to work.
有些人怀疑这些与国防有关的研究项目能否提高我们的生活水平，或者对保护我们日益减少的资源能否起到很大的作用。
There are those who consider it questionable that these defense-linked research projects will either improve our standard of living or do much to protect our diminishing resources.
这些反应影响着我们的遗传密码的表现方式：每个基因是如何被加强或削弱，甚至其作用机制是如何被打开或关闭，从而构成我们的骨骼、大脑以及身体的其他部位的。
These reactions influence how our genetic code is expressed: how each gene is strengthened or weakened, even turned on or off, to build our bones, brains and all the other parts of our bodies.
凝胶或者牙膏，鹿蹄草或者薄荷口味：这些作用一样，所以选择你喜欢的就行。
Gel or paste, wintergreen or spearmint: these work the same way, so pick the one you like.
杜克大学的研究人员详细核查了160多项已发表的研究，发现并没有强有力的证据表明这些方法中的任意之一能产生重大作用。
Researchers at Duke University scrutinized more than 160 published studies and found an absence of strong evidence that any of these approaches can make a big difference.
要有效运转和发挥作用，这些机构就必须不牵连政治。
These institutions have to be apolitical in order to function and to perform effectively.
这些结果有力地证明，我们的运动正在发挥作用。
These results demonstrate convincingly that our campaign is working.
这些政策对于解决长久以来更广泛地影响美国全球竞争力的问题将没什么作用。
Such policies will do little to resolve long-standing problems more broadly affecting America's global competitiveness.
这些团队论是任何一个还是全部一起，都能在制造或避免“数字诈骗”方面发挥重要作用。
Any or all these teams can play a role in creating or avoiding "digital deception".
要想让团队决策发挥作用，你需要有一种方法来梳理他们提出的各种方案，你还需要一种机制来缩小这些选择的范围。
For group decision-making to work well, you need a way to sort through the various options they propose: and you need a mechanism to narrow down these options.
当这些副作用发生时，它们被称为不良反应。
When these side effects occur, they are called adverse reactions.
当这些副作用发生时，它们被称为“不良反应”。
When these side effects occur, they are called "adverse reactions".
学者、决策者和各界批评人士都在讨论这些变化所带来的社会影响，但很少有人关注其副作用——家庭风险也在上升。
Scholars, policymakers, and critics of all stripes have debated the social implications of these changes, but few have looked at the side effect: family risk has risen as well.
大多数深海动物依靠颗粒物质作为食物，这些颗粒物质最终来自于光和作用，下降的排放口会使平流的作用相形见绌。
Most deep-sea faunas rely for food on particulate matter, ultimately derived from photosynthesis, falling vent would dwarf any contribution from advection.
与这些因素相结合的是肌肉之间复杂的相互作用的丧失，这种相互作用可以改变从鼻子到嘴的气流路线。
Coupled with these factors is the loss of the complex interactions among the muscles that can change the route of airflow from nose to mouth.
与这些因素相结合的是肌肉之间复杂的相互作用的丧失，这种相互作用可以改变从鼻子到嘴的气流路线。
Coupled with these factors is the loss of the complex interactions among the muscles that can change the route of airflow from nose to mouth.
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