All living things are composed of cells.
所有的生物都由细胞组成。
Photoreceptors are cells that respond to light by sending out a chemical signal.
光感受器是通过发出化学信号来对光作出反应的细胞。
"They can help nerve cells handle information and put it into storage," says Dr. Bruce McEwen.
“它们可以帮助神经细胞处理并储存信息。”布鲁斯·麦克尤恩博士（Dr. Bruce McEwen）说。
The two drugs work hand in hand to combat the disease and help to repair damaged cells and tissue.
这两种药物携手合作，共同对抗疾病，帮助修复受损的细胞和组织。
Most cells in your body have two copies of every chromosome and, therefore, two copies of every gene: one from your mother and one from your father.
你体内的大多数细胞每条染色体都有两份拷贝，因此，每个基因也都有两份拷贝：一份来自你的母亲，一份来自你的父亲。
Your body creates more and stronger mitochondria in each of your cells, making you more powerful and giving you more endurance for everything in your life!
你的身体会在每个细胞中产生更多更强的线粒体，让你更强大，让你对生活中的一切都更有耐力!
She was treated beginning in 1990 with a revolutionary new therapy that sought to correct the defect at its very source, in the genes of her white blood cells.
她从1990年开始接受治疗，采用了一种革命性的新疗法，试图从她白细胞基因的源头纠正缺陷。
Just below the chromatophores is a layer of cells that reflect light from the environment, and these cells help the octopus create a precise match with the colors that surround them.
色素团下面是一层细胞，它可以反射周围环境的光，这些细胞可以帮助章鱼精确地匹配周围的颜色。
I was so impressed with the way you handle the microscope and the samples of onion cells, and with how carefully you observed and diagramed and interpreted each stage of cell division.
你操作显微镜和洋葱细胞样本的方式，以及对细胞分裂各阶段的仔细观察、描绘和解释，让我印象非常深刻。
Today, biologists, using 21st-century tools to study cells and DNA, are beginning to understand how these plants hunt, eat and digest—and how such bizarre adaptations arose in the first place.
今天，生物学家利用21世纪的工具来研究细胞和DNA，开始了解这些植物是如何捕食和消化的——以及这些奇异的适应性最初是如何产生的。
Scientists could use human cells to grow new organs.
科学家可以用人类细胞来培育新的器官。
During this time, the body repairs itself and makes more cells.
在这段时间里，身体会进行自我修复并且促进细胞再生。
Stem cell researchers have found a way to get perfectly usable stem cells from fully grown human beings.
干细胞研究人员已经找到了一种从成年人身上获得完全可用的干细胞的方法。
All plants and animals are made of cells.
所有的植物和动物都是由细胞构成的。
Human beings are the cells and souls of cities.
人，既是城市的细胞，又是城市的灵魂。
All living cells send out tiny pulses of electricity.
每个活细胞都会发出微小的电脉冲。
Glucose also passes into our brain cells to power our thoughts.
葡萄糖也输送到我们的脑细胞中为我们的思维提供能量。
The pigment absorbs the radiation and protects cells from damage.
黑色素可以吸收辐射，保护你的细胞不受损伤。
As prices came down, installations of solar cells in Germany shot up.
随着价格的下滑，德国的太阳能电池安装迅速增长。
Vitamin B-12 is necessary to produce red blood cells and prevent anemia.
维生素B-12：维生素B-12对制造血红细胞以及预防贫血症至关重要。
They may also help researchers to design synthetic genetic circuits in cells.
它们还能帮助研究人员设计出细胞中的人工基因电路。
Solar PV (photovoltaic) cells generate electricity directly from sunlight.
太阳能光伏电池直接利用阳光发电。
Oxygen drives the process of respiration, which provides our cells with energy.
氧气驱动着呼吸过程，给我们的细胞提供能量。
Other genes can prompt skin cells to turn directly into neurons or blood cells.
还有一些基因能够激发皮肤细胞，让它们直接转变为神经细胞或者血细胞。
In the field of stem cells, China is showing that it can do world-class science.
在干细胞研究方面，中国已经达到世界先进水平。
Hydrogen fuel cells work by combining hydrogen and oxygen to produce electricity.
氢燃料电池通过氢氧结合产生电能。
The work is important since the solar cells are based on a new operating principle.
我们的工作很有意义，因为这种太阳能电池是以一种全新的原理开发的。
The work is important since the solar cells are based on a new operating principle.
我们的工作很有意义，因为这种太阳能电池是以一种全新的原理开发的。
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