They discovered that high melatonin did not affect learning per se, but dramatically reduced the fishes' ability to form new memories, or to remember what they'd learned.
研究人员发现大量的褪黑素没有直接影响学习本身，但是却很大程度地使斑马鱼的记忆衰退，斑马鱼不记得学过的东西。
Straying rates remain relatively low when environmental conditions are stable, but can increase dramatically when streams suffer severe disturbance.
当环境条件稳定时，偏离率相对较低，但当河流受到严重干扰时，偏离率会急剧增加。
The Lapita left precious few clues about themselves, but Efate expands the volume of data available to researchers dramatically.
拉皮塔人几乎没有留下任何关于他们自己的宝贵线索，但艾菲特岛极大地增加了可供研究人员使用的数据。
Spices not only dramatically improved the taste of the European diet, but also were used to manufacture perfumes and certain medicines.
香料不仅极大地改善了欧洲饮食的口味，而且还被用于制造香水和某些药物。
Not only have we overcome them all, Buffett pointed out, but our standard of living has increased dramatically — nearly sevenfold in the last century.
巴菲特指出，我们不仅克服了他们而且在这个世纪末我们的生活标准戏剧性的增长了将近七倍。
It has yet to happen with the current crisis. But for the Depression it struck dramatically over a mere ten days in early 1933, just before Franklin Roosevelt took office.
这样的事还没有发生在目前的金融危机中，但在大萧条时期，它戏剧地发生在1933年初的短短十天之中，就在富兰克林·罗斯福上任的前夜。
No one knows how many are in this group, but the back catalogue could inflate the database dramatically.
没有人知道该数据库里有多少人，但是其后备名单可以大大增加数据库中的人数。
In 1970 the answer would have been 122, but this increased dramatically to 164 for the most recent 25 years.
1970年时，这个问题的答案会是122次；但最近25年，戏剧性地增加到了164次。
But bears doubt that profits will rebound so dramatically.
但熊市论者怀疑，明年利润是否能大幅回升。
Not exactly, but your risk for skin cancer, including melanoma, dramatically increases if you have had five or more severe sunburns that blister.
不是这样的，但是如果你有五次以上严重晒伤致起水泡，你得皮肤癌的风险，包括黑素瘤的风险大大提高。
But some believe netbooks also have the power to dramatically reshape the tech sector, for better or worse.
但是一些人相信，无论结果是好还是坏，上网本还能够戏剧性的重塑高科技行业。
In Britain density has fallen dramatically from 82% in 1979, but has stabilised at about 56%.
1979年在英国，密度值戏剧性地从82%开始下跌，但是稳定在56%。
The breakthrough is unlikely to lead to drugs that dramatically extend lifespan, but doctors say it may help prolong the lives of patients whose genes make them susceptible to dying young.
尽管这项突破不太可能带来大幅延长人类寿命的药物，但医生指出，这项研究也许有助于延长那些由于自身基因而更易早逝的病人的寿命。
That's the thing -- prostitutes' lives have been dramatically transformed by technology, but that's true for all of us, regardless of profession.
技术显著改变了失足妇女的生活，但这一改变于我们一视同仁，与职业毫无关系。
Well, you can see the pink line shows the employment in Los Angeles, and indeed, it did move around corresponding to the booms and busts in the Los Angeles market but not so dramatically.
你可以看到那条粉线，表示了洛杉矶的就业情况，实际上，它紧随着洛杉矶市场，兴衰变动，只不过没有那么显著。
But most important, it dramatically improves turnout.
但最重要的是，它大大增加了参选人数。
Technology tends to get dramatically cheaper, but living expenses don't.
技术会戏剧性地贬值，但生存价码不会。
But, Auriemma said, as Japan showed, one tragic event can dramatically change the situation.
但是，奥列马说，日本的情况表明，一个悲剧性的事件可以戏剧性地改变这种状况。
Adopting Ajax may give users a better experience, but may, in fact, dramatically increase your costs of developing and maintaining Web applications.
采用Ajax可能会改善用户体验，但事实上也可能大大增加开发和维护Web应用程序的成本。
Farm animals were long raised outdoors in relatively low concentrations, but that changed dramatically in the 20th century.
农场里的家畜长时间在室外散养，养殖密度低，但是二十世纪以来情况发生了显著的变化。
As you've learned in this article, Groovy doesn't reduce Swing's intrinsic complexity, but it dramatically reduces the syntactic complexity.
正如本文中指出的，Groovy并不能降低Swing内在的复杂性，但是它可以显著降低语法复杂性。
So some percentage of you will go after the person but the percentage goes up dramatically if the person who has come and left their stuff on the beach says will you watch my stuff?
那么，你们当中一定比例的人将追随着这个人，但是如果在海滩上这个走过来将毛巾，及其他东西放在你旁边的这个人对你说，你可以照看以下我的东西吗？，然后走开后其他一些人？
But if your symptoms persist-or worsen dramatically-see a doctor!
但是如果你的症状一直持续——或急剧恶化——去看医生吧！
Caching data in memory can dramatically increase performance, but remember that the data is then somewhat vulnerable.
在内存中缓存数据能大大提高性能，但是数据会显得有些脆弱。
It's unclear what Nokia spent on software development, but this chart highlights how costs will be dropping dramatically.
尚不清楚诺基亚在软件研发上投入什么，但这一图表聚焦了成本是如何急剧下降的。
But the speed of sequencing has been increasing dramatically while the cost has been dropping in a similar fashion.
但是序列检测工作的速度已经大大加快，因为同样的工作模式下，成本已经大为减少。
But now that this commitment has been called on so dramatically, three questions arise.
然而由于这一承诺被号召地如此声势浩大，产生了三个问题。
Throughout Asia companies have become more optimistic about hiring than they were a year ago, most dramatically in Singapore but only slightly in Japan.
亚洲所有的公司在招工上要比去年更显乐观，新加坡的公司最为乐观，而日本的公司表现的不太明显。
Throughout Asia companies have become more optimistic about hiring than they were a year ago, most dramatically in Singapore but only slightly in Japan.
亚洲所有的公司在招工上要比去年更显乐观，新加坡的公司最为乐观，而日本的公司表现的不太明显。
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