通过对这些男孩的两次扫描，科学家可以细致地描绘出在这个重要的发育时期，大脑是如何变化的。
By scanning the boys twice the scientists were able to create a detailed picture of how the brain changes during this critical period of development.
如果财政刺激难以取代金融整顿的话，前者在这个需求低迷的时期也是一项重要支持。
If fiscal stimulus is no substitute for financial clean-ups, it is an important support at a time of slumping demand.
世界银行驻刚果(金)和刚果共和国首席代表MarieFrancoise Marie - Kelly说“对世界银行和其它伙伴来说在这个混乱时期帮助刚果(金)是重要的”。
"It's important for the World Bank and the other partners to support the DRC in this period of turmoil," says Marie Francoise Marie-Kelly, country manager for DRC and Congo-Brazzaville.
在这么一个非常关键的时期，我们很难想象出一个还有比关于这个至关重要的话题的更重要的会议。
It's hard to imagine a more important conference on a more vital topic at a more crucial time.
萨默斯表示，在这段时期，中产阶级收入增长的缺失是“我们这个时代最重要的议题，”这事实上是承认，自由派在这个议题上要更胜他一筹。
The lack of middle-class income growth during that span is "the defining issue of our time," Mr. Summers has said, in a tacit admission that liberals were ahead of him on this issue.
更为重要的是，在同一时期内，3g用户数增长了2,000万，在这个夏季扩展到了8,700万。
More importantly, the 3g subscriber base grew by 20 Million over the same timer period, expanding to 87 Million over the summer.
这也解释了没有什么事情比这个最自然的了，那就是我们应该来到地球，特别是在这样一个重要的时期来帮助你们。
It explains why there is nothing more natural than that we should come to Earth, at such an important time to help you.
人类在这个时期完成了发育和基本成熟这个具有重要意义的过程。
During this period of human development and completion of the basic importance of the maturity process.
如今，克里姆特已成了这10年里引导业界的代表人，最重要的是因为克里姆特的作品反映出了伟大繁荣的另一个时期——在这个时期里，虚饰与财富重整旗鼓，占据了潮流的顶峰。
Now Klimt has become the flavour of this decade, not least because his work reflects another period of great prosperity in which ostentation and wealth came back in fashion.
阅读对于中小学生尤为重要，假如他们没有在这个关键时期培养阅读的兴趣，以后要培养成阅读的习惯就跟难了。
Reading is especially important for middle and primary school students. Suppose they don't nurture the interest of reading at that key moment, it will be harder to develop a habit to read books.
因此，在这个时期来研究我国证券化信用风险的防范问题具有十分重要的现实意义。
Therefore, it has extremely important practical significance to study how to prevent the credit risks in our China's securitization during this period.
阅读对于中小学生尤为重要，假如他们没有在这个关键时期培养阅读的兴趣，以后要培养成阅读的习惯就跟难了。
Therefore, if they don't nurture the interest of reading at that key period, it will be harder for them to develop a habit to read in the future.
大部分的双倍体基因在早期经历了重要的不严格的选择阶段，在这个时期他们的模式片段以有效的，不确定的方式进化。
Most duplicated genes experience a brief period of relaxed selection early in their history, with a moderate fraction of them evolving in an effectively neutral manner during this period.
阅读对于中小学生尤为重要，假如他们没有在这个关键时期培养阅读的兴趣，以后要培养成阅读的习惯就更难了。
Reading is especially important for middle and primary school students. Suppose they don't nurture the interest of reading at that key moment, it will be harder to develop a habit of reading.
阅读对于中小学生尤为重要，假如他们没有在这个关键时期培养阅读的兴趣，以后要培养成阅读的习惯就更难了。
Reading is especially important for middle and primary school students. Suppose they don't nurture the interest of reading at that key moment, it will be harder to develop a habit of reading.
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