All substances, whether they are gaseous, liquid or solid, are made of atoms.
一切物质，不论它们是气体、液体还是固体，都是由原子构成的。
All substances, all forms of matter, can be distinguished according to what wavelength of light they absorb and which ones they reflect.
所有形式的物质，都可以根据它们吸收的光的波长以及反射的光的波长来区分。
All substances are composed of a great many particles called atoms.
一切物质都是由大量称作原子的粒子构成的。
All substances, whether gaseous, liquid or solid, are made of atoms.
一切物质，不论是气态、液态，还是固态，都由原子组成。
All substances consist of small particles which are called molecules.
所有的物质都是由称做分子的粒子组成的。
Practically all substances expand when heated and contract when cooled.
几乎所有的物质都是热胀冷缩的。
The aim is to include monographs on all substances used significantly in Europe.
其目的是要在各论中包括在欧洲大量使用的所有物质。
All substances are poisons, there is none which is not a poison. The right dose differentiates a poison and remedy.
所有物质都是毒物，没有不是毒物的物质，唯有剂量使之区分为毒物还是药物。
All substances and products are subject to relevant control of solvents likely to be present in a substance or product.
所有成份和成品都要对成份和成品中或许存在的溶剂进行节制。
There exist neither perfect insulators nor perfect conductors, for all substances offer opposition to the flow of electric current.
没有绝对的绝缘体也没有绝对的导体，因为一切物体对电流都有阻力。
Perform all the standard safety tests required by the Toxic Substances Control Act on humans instead of animals.
完成美国有毒物质控制法规定的所有标准安全检测，不过不是在动物身上，是在人身上。
All matter is composed of basic substances called elements.
物质都是由被称为元素的基本物质所组成。
If the world also is to deploy all available means to combat climate change, emissions of all the substances that contribute to it must be scientifically evaluated and urgently addressed.
如果世界各国还想尽一切可能的方式来应对气候变化的话，所有对此负有责任的污染物质都必须进行科学评估并加以紧急处理。
Although mice are a long way off from being human, we all know that many effects of medication or substances on them are similar to what humans experience.
虽然老鼠远非人类，但是我们都知道很多药物和物质对他们的效果与对人类的是相似的。
Tobacco rose and fell and rose and fell in a 400-year smoking spree that established a pattern for the trade in all addictive substances.
在400年的吸食狂欢中，烟草的起起伏伏为所有可以上瘾物质的交易建立了一种模式。
None of this is to say that people must immediately bin all vitamin-containing substances; vitamins are, after all, essential nutrients.
这一切都不意味着人们应该立马将所有含维生素的物质弃之如敝屣。毕竟维生素是基本营养品。
There're also some major problems for Cartesian dualism, one of them a famous problem uh, how can two such distinct substances interact at all.
对于笛卡尔的二元论来说还有几个主要问题，其中一个非常著名，是关于两个不同物质是如何互动的。
In the arc of history, all three substances are still new, and we have a lot to learn about them.
在历史的长河里，这三者都只是新生事物，我们还有很多要去探索。
Part of the fear of chemicals stems from the sheer novelty of new chemical substances and their all-pervasive presence in our lives.
对于化学物质的恐惧一部分是源于对这些新化学物质的好奇和他们对于日常生活的无孔不入。
Since no single food provides all of the nutrients that your body needs, eating a wide variety helps ensure that you get the necessary nutrients and other substances that promote good health.
没有任何一种食物可以提供身体所需的所有营养，所以饮食的丰富性可以保证你获得必需的营养，并且保持健康的体魄。
Every year the World Anti-Doping Agency publishes a list of prohibited substances and methods, divided into those prohibited at all times and those outlawed only during competitions.
每年世界反兴奋剂组织都会公布一系列(体育比赛中的)禁用物品以及禁用方法，并把它们分为任何时候都不能使用和在比赛时不能使用两种情况。
The smoke released by cigarettes, with all of the other substances and chemicals within, can get into your laptop's insides and slow it down over time, and it can also turn your keyboard yellow.
吸烟时释放的含有其他各种化学物质的烟雾会进入你电脑里，它们会使得本本的运转速度慢下来，也会使得键盘泛黄。
All transparent substances slow down the light that moves through them — that's why light seems to bend, or refract, when it passes from air to water.
一切透明物质都会减缓通过它的光的运动速度——这就是为什么当光由空中进入水中时，光看上去似乎被弯曲或折射的道理。
The seventy-five percent of our bodies composed of water, protein, fat and other substances all must function properly to sustain life.
第七百分之五我们的身体的水分，蛋白质组成，脂肪和其他物质都必须正常工作来维持生命。
As we all know, tobacco contains many toxic substances such as nicotine and tar.
正如我们所知，烟草中含有许多有毒物质，如尼古丁和焦油。
As we all know, tobacco contains many toxic substances such as nicotine and tar.
正如我们所知，烟草中含有许多有毒物质，如尼古丁和焦油。
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