首先，训练老鼠来识别人的气味。
它很饿，想去捉一只老鼠来填饱肚子。
你要让一只老鼠或几只老鼠来阻止一项将造福于几百万人民的工程吗？
You'd let a mouse, or mice, prohibit a project which will benefit millions of people?
研究者们在两个月、十个月、18个月和26个月的时候选择老鼠来分析。
The researchers selected mice, at two months, 10 months, 18 months and 26 months for this analysis.
为此，他们用老鼠来做研究，这些老鼠天生缺乏一种可以诱导躯体产生骨钙素的基因。
To do so, they used some mice that had been bred to lack the gene that instructs the body to make osteocalcin.
数十年后，其他科学家更加谨慎地研究恐惧，许多实验倾向于使用白老鼠来代替人类作为研究对象。
In later decades, other scientists got much more rigorous in their study of fear, in many cases turning to rats rather than people as their test subjects.
有一天，乡下老鼠邀请城市老鼠来牠家里。牠拿出在田里所能找到最丰盛的晚餐，来招待他的客人。
One day the country mouse invited the city mouse to his house. He brought out the best dinner that he could find in the fields, and entertained his guest.
很小的时候，家庭状况不是很好，记得去爷爷四弟家玩耍，堂哥把我的鞋子扔到厕所里面，抓老鼠来咬姐姐。
When a small, family status was not very good, I remember Grandpa Fourth Brother house to play, cousins threw my shoes toilets inside, catching mice bite his sister.
让米老鼠来做医疗行业看起来并不怎么合适，但是迪斯尼主题公园背后的管理团队却拥有着极高的顾客满意度。
Mickey Mouse might seem like a goofy consultant for the health care industry. But the management teams behind the theme parks have a good track record at satisfying customers.
这项新研究是用老鼠来进行的，发现雌老鼠对一种重要的应激激素，即使低水平也比雄老鼠更为敏感；也就是说，相对来说，雌老鼠不能够适应这种激素的高水平。
The new study, done on rats, finds females are more sensitive to low levels of an important stress hormone and less able to adapt to high levels of it than males.
花了大气力来消灭这些老鼠。
老鼠在下水道和地板下面蹿来蹿去。
The rats skittered around them in the drains and under the floorboards.
一只小老鼠从洞里探出头来。
他们找到一只猫来驱赶老鼠。
在病毒感染的反应中，老鼠的免疫系统通常会产生抗体，通过与病毒表面的蛋白质结合来破坏病毒。
In response to viral infection, the immune systems of mice typically produce antibodies that destroy the virus by binding to proteins on its surface.
要使你的房子里没有小老鼠，用圆珠笔来检查下所有的小洞。如果圆珠笔能放进去的话，那小老鼠就可能钻进去。
To keep your house mouseproof , check all small openings with a ballpoint pen. If it fits the hole, it will let mice in.
通常，一百个样本要花费实验技术员超过两天的时间来检测，但是一只老鼠只需要花费不到二十分钟。
Traditionally, a hundred samples would take lab technicians more than two days to examine, but for a rat it takes less than 20 minutes.
在第二个实验中，老鼠要用饥饿来对抗恐惧，饥饿的老鼠被放在一个笼子里，笼子里有一些“狐狸气味”的区域和其他气味闻起来更安全的地方。
In the second experiment meant to pit the mice's hunger against their fear, hungry mice were placed in a cage that had certain "fox scented" areas and other places that smelled safer.
在第二个实验中，老鼠要用饥饿来对抗恐惧。饥饿的老鼠被放在一个笼子里，笼子里有一些散发“狐狸气味”的区域和其他气味闻起来更安全的地方。
In the second experiment meant to pit the mice's hunger against their fear, hungry mice were placed in a cage that had certain "fox-scented" areas and other places that smelled safer.
接下来，研究人员将机器老鼠困在笼子里，让老鼠有机会按下杠杆来释放它们。
Next, the researchers trapped the robots in cages and gave the rats the opportunity to release them by pressing a lever.
摄入了吗啡的老鼠很可能会发生血液中毒，因为通常存在于肠道的细菌会通过迁移到血液中来对吗啡做出反应。
Mice that have been given morphine are very likely to develop blood poisoning because bacteria that normally reside in the intestine typically respond to morphine by migrating into the bloodstream.
那只猫蹲下身来准备向老鼠猛扑过去。
还有一个小问题：多数的多巴胺研究是通过实验室中对老鼠和猴子所做的实验来完成的。
There is one small problem: much of the dopamine research is done through lab work with rats and monkeys.
老鼠整夜在他睡袋上窜来窜去，他感到略有寒意。
他们用一种病毒来把这些基因引入老鼠胚胎的皮肤细胞，然后进行监测。
A virus was used to introduce the genes to mouse embryo skin cells, which were then monitored.
它们也具有基因多样化，来确保老鼠死于不同的方法，这就要求任何潜在抗衰老药物有一个真正的广泛影响。
They were also genetically diverse, ensuring that mice would die in many different ways, and requiring any potential anti-aging drug to have a truly broad effect.
科学家观察老鼠的行为，来判断特定产品是否对其造成影响。
Scientists observe the behavior of mice to determine how certain products affect them.
科学家观察老鼠的行为，来判断特定产品是否对其造成影响。
Scientists observe the behavior of mice to determine how certain products affect them.
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