I was going to have a go at parachuting but lost my nerve at the last minute.
我想尝试一下跳伞，可到最后关头却没有勇气了。
Silk tubes, made by dipping a wax mold in aqueous silk solution, have a number of tissue engineering applications like blood vessel grafts and nerve guides.
丝管是通过将蜡模浸入水化的丝蛋白溶液中制成的，有许多组织工程应用，如血管移植和神经导引。
Its researchers have turned them into a type of cell that produces the insulating sheath around a nerve cell.
其研究人员已经把干细胞变成了一种在神经细胞周围产生绝缘护套的细胞。
You and I have a hundred billion nerve cells in our brain, with a hundred trillion connections between them.
你我大脑中有一千亿个神经细胞，神经细胞之间又有百万亿计的连接。
The obese subjects tended to have damage to a particular substance that surrounds and insulates nerve fibres in the brain, suggesting that substance is needed for optimal cognitive function.
肥胖的受测者们较容易使得包围并隔离大脑中的神经纤维的物质所受到伤害，而这一部分物质则利于优化大脑的认知功能。
When we have a stroke, our brain is starved of oxygen, causing the catastrophic death of those nerve cells and leaving us paralysed and unable to speak.
当我们中风时，大脑缺乏氧气，造成神经元细胞大批死亡，导致我们瘫痪在床并且无法说话。
And what should a betrayed wife do if she doesn't have the nerve or the money to hire a hit man to teach the cheater a lesson?
而且，什么是一个被背叛的妻子应该做的，如果她没有勇气或钱去聘请一个打手去教训那个骗子？
Within an hour of a person falling asleep, slow waves will have covered his entire cortex, affecting every nerve cell in it.
在人入睡后的一小时内慢波将覆盖其整个大脑皮层，并影响其中的每个神经细胞。
The polls have struck a raw nerve with Mr. Musharraf, who while reiterating his pledge of fair elections, sharply denounced the surveys by international organizations.
这次民意调查触及到穆沙拉夫的痛处，他重申对公正选举的承诺，同时强烈谴责国际组织做出的调查。
The paper industry may, as a general rule, be a rotten business to be in, but not in a growing market where potential competitors have lost their nerve.
一般说来，造纸行业可能是个糟透了的产业，不宜涉入从事，但在不断增长的市场中，情况却并非如此，因为潜在的竞争者业已惊慌失措。
Nerve cells have a huge demand for energy, so a failure of the mitochondria would certainly affect them.
神经细胞对能量的需求量很大，所以线粒体缺陷很可能会影响神经细胞的正常工作。
Other studies have shown that it helps in the synthesis and repair of DNA and that it plays a role in signaling between nerve cells.
已有研究表明：烟酸参与dna的合成和修复，还在神经细胞间的信息传递中发挥作用。
I think what Madonna and I share is that we're both fearless, we both have a lot of nerve.
我觉得我和麦当娜的相同之处是，我们无惧，有巨大的勇气。
Crucially, Greek Banks also depend on depositors keeping their nerve. So far they have pulled less than a fifth of their money out of Banks.
重要的是希腊银行也依赖于储蓄用户，到目前为止，他们从银行取出不足存款的五分之一。
Some worry that, having made big losses, some managers may have lost a bit of nerve-and will forfeit gains if markets rebound.
有些投资者还担心损失太多导致基金经理丧失勇气，就算市场回暖，他们也会错失翻本的机会。
With Vida, we don't know whether it's a nerve problem or not. He'll have that checked tomorrow.
至于维迪奇，我们不知道他的小腿伤的是否严重，得看周一的检查结果，即使这样，他也会缺席几个星期。
Roy: No, unfortunately I have a colonel's dinner. It takes a lot of nerve to miss a colonel's dinner.
罗伊：不幸的是，我得参加上校的晚宴，不赴宴将需要很大的胆量。
I was like, 'Yeah, we have a lot of oil in Scotland.' I didn't know what to say. It was a bit nerve-racking. We were guests of honor of the vice mayor.
我当时都傻了，完全不知道说什么，只会讲一些诸如“是啊，我们苏格兰石油挺多的”这种废话。
Scientists have discovered a special kind of nerve in the spinal cord that carries the "relief" and itchy feelings.
科学家已经在脊髓里发现负责传递那种“舒缓”和发痒感觉的特殊神经。
Hard practice or staying up for performance is inevitable, then have a interim rest to adjust and relax the overload physical body and nerve.
刻苦的训练或通宵熬夜在所难免，那么请间隙小憩来调节一下超负荷的身体和神经。
You were supposed to go for it, ask your crush on a date, work up the nerve to tell that boy or girl what kind of feeling you have for them.
你应该大胆一试，跟你的心上人约会，鼓起勇气向心仪的男孩或女孩表白，诉说你对他（她）的感觉。
The findings suggest that modification of nerve activity could have potential as a treatment for a wide range of brain disorders.
这个发现表明神经活动的修正具有作为治疗广泛脑病手段的潜力。
Not only does nicotine have effect on the development of nerve, respiratory and cardiovascular systems, but has a complex interaction with carcinogenesis.
尼古丁参与影响神经系统、呼吸系统和心血管系统等重要器官的发育，并与癌症的发生有着密切的关系。
For around a decade, scientists have been trying to regrow nerve cells lost in neurodegenerative diseases such as Parkinson's, Alzheimer's and amyotrophic lateral sclerosis (ALS) from stem cells.
大约十年间，科学家们一直尝试利用干细胞使神经退变性疾病中的神经细胞再生，例如帕金森病，阿尔茨默病和肌萎缩侧索硬化。
Now, researchers have identified a key process by which macrophages are cleared from sites of peripheral nerve injury.
现在，研究人员已经清楚了巨噬细胞被从周围神经损伤位点清除这一关键过程。
SCIENTISTS have discovered a key protein responsible for protecting nerve fibres which could pave ways to new treatments for multiple sclerosis.
科学家已经发现一种保护神经纤维的重要蛋白，这为多发硬化的新型治疗开辟了道路。
SCIENTISTS have discovered a key protein responsible for protecting nerve fibres which could pave ways to new treatments for multiple sclerosis.
科学家已经发现一种保护神经纤维的重要蛋白，这为多发硬化的新型治疗开辟了道路。
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