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.
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.
就在上半场结束前科尔上场替换了贝克汉姆。
另一位前科氏顾问说，“他们很精明。”
目前科学家已经成功克隆了一些小动物。
To date scientists have succeeded in cloning some small animals.
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.
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.
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.
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.
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.
赫尔方博士称目前科学家正着手追踪那些能给地球带来潜在威胁的大型太空岩石。
Dr. Helfand said that scientists today are tracking large space rocks that are potentially hazardous.
据科曼和西林萨克斯说，是因为“高纯度的肉毒毒素是目前科学已知的最致命的毒素”。
Rather, it is the fact that botulinum neurotoxin, in its pure form, is "the deadliest substance known to science," according to Coleman and Zilinskas.
作为新一轮的天文学史展览，伦敦科学博物馆展出了400年前科学家们绘制的月球图稿。
Drawings of the Moon made 400 years ago can be seen at London's Science Museum as part of a new exhibition on the history of astronomy.
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.
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.
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.
关于其大嘴的用途，目前科学家们还知之甚少，但比较公认的看法是帮助捕猎小型甲壳类动物。
Not much is known about the eel's large mouth, but it's thought to help capture small crustaceans.
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.
行星研究学家艾伦·斯坦，NASA前科研协理署长，称新理论“十分新颖独特，”但不容易证明其正确性。
Planetary scientist Alan Stern, former NASA associate administrator for science, said it is a "very clever new idea," but one that is not easily tested to learn whether it is right.
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.
“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.
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.
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.
牛顿的研究成果在1687年首次出版的《自然哲学的数学原理》一书中发表。 在这本书里牛顿对以前科学家所关心的大部分力学难题做出了解答。
The outcome was the famous "Principia Mathematica", first published in 1687, in which Newton presented solutions to most of the problems of motion that had concerned earlier scientists.
目前科学界已经知道的全球物种大约有180万个（而根据推测，全球总共有500万到3000万个物种——实际上，地球到底有多少物种还不确定）。
Science currently recognizes around 1.8 million species on Earth (out of an estimated five million to 30 million total species—the true total remains unknown).
他指出，目前科学家开始研究一种叫邻苯二甲酸盐的化合物，该化合物广泛用于工业生产，起到增塑剂的作用，一些儿童玩具及医药用品中也含邻苯二甲酸盐。
Dr. Landrigan said scientists start concerned about chemicals called phthalates, widely used to make plastic flexible, and found in baby toys and medical supplies.
他指出，目前科学家开始研究一种叫邻苯二甲酸盐的化合物，该化合物广泛用于工业生产，起到增塑剂的作用，一些儿童玩具及医药用品中也含邻苯二甲酸盐。
Dr. Landrigan said scientists start concerned about chemicals called phthalates, widely used to make plastic flexible, and found in baby toys and medical supplies.
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