美国科学60秒 SSS 2013-04-16
时间：2018-12-24 作者：英语课 分类：Scientific American(四)月
Day and night existed long before the first primitive 1 cells coming into being. And that light/dark cycle left its mark on nearly every living thing, microbes, plants, insects, mammals---we all experience circadian rhythms, due to molecular 2 clocks in our cells. But that internal timer affects more than just bedtime. The body's cells may actually divide by the clock, too, in fruit flies at least. Researchers gave fruit flies a form of an inflammatory bowel 3 disease. In response, the flies' intestinal 4 stem cells got busy reparing the gut 5, most of them dividing in sync around dawn. But when researchers blocked the action of two clock genes 6 in the intestine 7, the flies couldn't patch up the damage. Instead of a correlative repair, the cells stalled in various stages of division, indicating that the internal clock plays a role in healing too. Those results appear in the journal Cell Reports. The researchers say the circadian clock might inform healing in us too, since it's such an ancient trait. If so, they say, doctors might want to time surgeries or chemotherapy for when the body is primed to heal, helping 8 patients clock a faster recovery.
- It is a primitive instinct to flee a place of danger.逃离危险的地方是一种原始本能。
- His book describes the march of the civilization of a primitive society.他的著作描述了一个原始社会的开化过程。
- The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
- For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时，分子的碰撞就停止了。
- Irritable bowel syndrome seems to affect more women than men.女性比男性更易患肠易激综合征。
- Have you had a bowel movement today?你今天有排便吗？
- A few other conditions are in high intestinal obstruction. 其它少数情况是高位肠梗阻。 来自辞典例句
- This complication has occasionally occurred following the use of intestinal antiseptics. 这种并发症偶而发生在使用肠道抗菌剂上。 来自辞典例句
- It is not always necessary to gut the fish prior to freezing.冷冻鱼之前并不总是需要先把内脏掏空。
- My immediate gut feeling was to refuse.我本能的直接反应是拒绝。
- You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
- Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪