然后再分别提出各个学段的安全教育目标。
Then we could propose the safe educational objectives of each study section separately according to factors.
实施语文课程标准在第一学段（1-2年级）的最大难点是识字教学，而识字教学又是多年来小学语文教学难以攻克的堡垒。
During the first stage(1-2grade)of using Chinese course standard, the most difficult point is the identifying teaching, which is the stronghold of Chinese teaching in elementary school for years.
我就任高校的动物学课程所吸引的学生，就是因为参观动物园这一段至关重要的成长经历，才选择修读生物科学专业。
The zoology program at my university attracts students for whom zoo visits were the crucial formative experience that led them to major in biological sciences.
至于通过论据或明显的论据而奏效的说服：正如在辩证法中一方面有归纳推理，另一方面有三段论或明显的三段论一样，在修辞学中也是如此。
With regard to the persuasion achieved by proof or apparent proof: just as in dialectic there is induction on the one hand and syllogism or apparent syllogism on the other, so it is in rhetoric.
因为我父亲休假的缘故，我的小学二年级有一段时间是在瑞典上的，那个时候他是一名社会学教授。
And I spent part of my second grade year in Sweden, where my father was on sabbatical as a professor of sociology.
每次我们训练一种老技能或学一样新的时，显现的神经间联系是很强健的，并且一段时间后，神经元间的联系会增多。
Every time we practice an old skill or learn a new one, existing neural connections are strengthened and, over time, neurons create more connections to other neurons.
这两位经济学家对立的思想观点让他很是迷茫，因此有段时间他转而学习数学。就是在那段时间里第一次接触了教授营销学的一批人。
The two economists’ opposing philosophies so frustrated him that he switched for a while to mathematics, and at that time had his first introduction to people who were teaching marketing.
很长一段时间，精神病学被心理动力学严重影响，心理动力学有很多股势力，但没有一个做基础研究。
For the longest time psychiatry was heavily influenced by psychoanalysis. And psychoanalysis has a lot of strengths, but doing basic research is not one of them.
很少有能够形成修辞学三段论基础的“必要”类型的事实。
There are few facts of the "necessary" type that can form the basis of rhetorical syllogisms.
在第一阶段里，我们运用民族志学研究，包括历时几个星期的家庭式访谈和家庭成员娱乐日志评论。
In the first phase, we used ethnographic studies involving in-home interviews and a review of entertainment diaries kept by household members over the course of several weeks.
这一段结合了一点古代遗传理论，一点生物学知识。
This one ties in a little bit of ancient genetic theory, a little biology.
有一段时间年少的宋先生也做过汉英翻译的工作，他最终获得了统计学和应用数学博士学位，并进入媒体和市场研究领域。
The younger Mr.Soong also worked as a Chinese-English translator for a time, eventually earned a Ph.D. in statistics and applied mathematics, and went into media and market research.
有一段时间年少的宋先生也做过汉英翻译的工作，他最终获得了统计学和应用数学博士学位，并进入媒体和市场研究领域。
The younger Mr. Soong also worked as a Chinese-English translator for a time, eventually earned a Ph.D. in statistics and applied mathematics, and went into media and market research.
有一段时间年少的宋先生也做过汉英翻译的工作，他最终获得了统计学和应用数学博士学位，并进入媒体和市场研究领域。
The younger Mr. Soong also worked as a Chinese-English translator for a time, eventually earned a Ph. D. in statistics and applied mathematics, and went into media and market research.
在研究人员聚集一堂谈论如何促进生物学和医学研究的开放性时，一名22岁的退学生发表了一段最犀利动人的演讲。
When researchers gathered together to talk about how to foster openness in biology and medical research, one of the most trenchant and moving presentations came from a 22-year-old college dropout.
上个月在辛辛那提举行的“北美古生物学大会”上，他做了一段讲话，我觉得很值得联系上下文、不加过滤的读一读他的话。
He gave this talk at the North American Paleontological Convention in Cincinnati last month, and I think it's worth reading his words unfiltered, in context.
但不管怎样，这些化石都提供了检验一段处于古生物学谜团之中的时期的难得机会。
In either case, the fossils provide a rare opportunity for examining a period shrouded in paleontological mystery.
饭菜的流行时刻变化，但对营养学的基本概念应该保持很长一段时间，甚至是一辈子的事情。
Food fads come and go, but nutrition common sense can last a long, long lifetime.
以下是来自《RNA生物学》的一段作者提交指南摘要。
Here is an excerpt from RNA Biology's new submission guidelines for its authors.
你认为学英语的最佳年龄段是什么时候？
我将会为大家播报一段新闻，这段新闻来自于我在博客中强烈推荐大家学习的“千万别学英语”的第五盘磁带中的一段美国新闻。
I am going to broadcast a piece of news from the fifth tape of the "Absolutely don't study English" which I strongly recommend you guys to learn in my blog.
我现在看一些书，但最近一段时间我在看教材，看生物学教材。
Yes, I do read some books. But recently, I switched to reading biological textbooks.
与内皮化关联最好的形态学参数是每个节段中未覆盖内皮部分占总支架支柱的比例。
The morphometric parameter that best correlated with endothelialization was the ratio of uncoered to total stent struts per section.
与内皮化关联最好的形态学参数是每个节段中未覆盖内皮部分占总支架支柱的比例。
The morphometric parameter that best correlated with endothelialization was the ratio of uncovered to total stent struts per section.
这些天来，一个人云亦云的思想，可以用逻辑学的三段论，总结如下。
Conventional wisdom these days can be summarized in the form. of a syllogism.
这些天来，一个人云亦云的思想，可以用逻辑学的三段论，总结如下。
Conventional wisdom these days can be summarized in the form. of a syllogism.
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