这些法律同样会产生相反的效果，因为它们加大了有犯罪前科的人租房、就业的难度，而这两个因素正是避免他们重蹈覆辙的关键。
These laws are also counterproductive, since they make it harder for people with criminal records to find housing or land a job, two key factors that reduce backsliding.
如果犯罪嫌疑人没有前科，并且法官认为他会回到法庭而不是逃跑，那么他可以获得自由。
If the suspect has no previous criminal record and the judge feels that he will return to court rather than run away, he can go free.
就在上半场结束前科尔上场替换了贝克汉姆。
有人可能会争论，对气候变化将如何影响我们的未来这类信息的需求已经超出了当前科技和气候模型的能力。
Some would argue that the demand for information on how climate change will affect our future outstrips the current capability of the science and climate models.
但他坦称这一方案会有一些副作用，目前科学家们仍在研究大蒜提取物对牛肉和牛奶的味道会产生多大影响。
But he admitted there could be side effects as scientists still work out how much of an effect the garlic extract has on the actual taste of beef and milk.
不过，这份新报告的确提出，要以精确的方式确定这些因素，哪怕就是与几年前科学家的认识相比，也要困难得多，这一原始发现，可能是出于偶然。
But it does suggest that nailing down those factors in a precise way is far more difficult than scientists believed even a few years ago, and that the original finding could have been due to chance.
然而，此前科学家并不知道这一过程中可能会积累多少含量的三聚氰胺。
However, scientists did not know how much melamine might accumulate in eggs from this process, until now.
当今所掌握的用以支持发现和开发新药物的知识和技术远远超过几十年前科学家所拥有的资源。
The knowledge and technologies available today to support new drug discovery and development are far superior to the resources available to scientists in decades past.
另一位前科氏顾问说，“他们很精明。”
超过三分之二的人再未“脸红脖子粗”，且即便是在有醉驾前科的分子不再接受测试的情况下，因醉驾而被拘役的人员数量缩减了一大半。
More than two-thirds of the group never "blow hot", and drunk-driving arrests are down by more than half even after the ex-offenders are no longer subject to testing.
这家保险公司最近对50名有盗窃前科的人进行调查，他们披露，如今监视社交网站的一举一动成为很多罪犯的首选。
The insurance company More Than recently carried out a survey of 50 former burglars, which revealed that monitoring social networking sites is now big business for criminals.
目前科学家们利用暗物质理论来预言宇宙中已知的星系的形成。
Now scientists have used dark matter theory to predict the menagerie of galaxies found in the universe.
二十多年前科学家就已经知道癌症是一种基因病变。
Scientists have known for more than two decades that cancer is a disease of the genes.
“这种食品大概是你能找到的最完美的人类膳食品”，三年前把这种食品引入到美国的61岁的前科罗拉多州农学家杜安·约翰逊说。
"This food is about the most perfect you can find for human diets," said Duane Johnson, a 61-year-old former Colorado State agronomist who helped introduce it to the United States three decades ago.
护理养老院已经人满为患了，谁愿意接受有前科的人呢？
Nursing care homes already are full. Who would be willing to accept former convicts?
目前科学家对于人类基因与药物副作用之间的关系所知非常有限。
Right now, scientists know very little about how human genes are linked to drug side effects.
“我估计，我们在探索深水区时发现的动物有一半以上都是之前科学界未见过或未描述过的。”奥斯本在一份电子邮件里写道。
"I would estimate that when exploring the deep water column, more than half the animals we see are undescribed or new to science," Osborn said in an email.
此前科学家们正在研究一种特殊的海洋细菌，它能产生分解包寿司的紫菜的酶。
The scientists were studying a particular Marine bacterium, which makes enzymes that break down the kind of seaweed used to wrap sushi.
士兵们抱怨受遣时没有足够好的装备绝非一朝一夕；而且战士由于防弹衣或其他装备不充分而身亡的丑闻亦有前科。
Squaddies have long complained about being sent out without good enough equipment; there have been several scandals over soldiers killed because they lacked body armour or other kit.
虽然许多实验室已成功制得心肌细胞，但是目前科学界尚无标准的养料和生长因素的培养基配方来帮助其培养成正常跳动的细胞。
Although plenty of LABS have made them, there are no standardized recipes for the nutrient and growth factor broths that help them grow into properly beating cells.
几十年前科学界就清楚，产生生命所需的原材料在地球上很充足。
For decades, science has known that raw materials for life were surely abundant on early Earth.
若非如此，月球可能从来都没有出现过岩浆海洋。之前科学家们曾认为，月球形成后不久，其表面处于岩浆的状态。
Or, if not, the moon may never have had the magma ocean that scientists think covered its surface soon after it formed.
“如果SAP有战前的前科的话，我就不会加盟这个公司了”，他说。
"If SAP had had a pre-war history, I would never have joined the company," he says.
奥巴马确实有过“前科”。
库利颁布了书面政策，要求除非前科和现有罪行中有暴力犯罪或恶性犯罪，否则不实行三振出局法，这在加州尚属首次。
Mr Cooley has become the first DA in California to have a written policy not to invoke the three-strikes law when neither the current crime nor the previous strikes are violent or serious.
吉尔表示，目前科学家还无法确定冰河时期动物灭绝的原因、以及为什么全球气候会发生骤变。
She said that scientists still aren’t sure why animals of the ice age died off, or why the world’s climate might suddenly warm and cool.
在大气层中，一氧化二氮的浓度很低，但目前科学家认为，气候暖化有6%的原因是来自一氧化二氮，而它也是破坏平流层臭氧的祸首之一。
Nitrous oxide exists at low levels in the atmosphere, yet is thought to be responsible for 6 percent of climate warming and also contributes to stratospheric ozone destruction.
在大气层中，一氧化二氮的浓度很低，但目前科学家认为，气候暖化有6%的原因是来自一氧化二氮，而它也是破坏平流层臭氧的祸首之一。
Nitrous oxide exists at low levels in the atmosphere, yet is thought to be responsible for 6 percent of climate warming and also contributes to stratospheric ozone destruction.
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