For about six or seven weeks after conception, there is no differentiation between male and female.
在受精后大约六七个星期时，男性和女性胚胎之间没有什么差别。
More than seven weeks later, the leader of Africa’s most populous country is still nowhere to be seen.
至今已超过七周，这位非洲人口最稠密国家的领导人始终没有露面。
More than seven weeks later, the leader of Africa's most populous country is still nowhere to be seen.
至今已超过七周，这位非洲人口最稠密国家的领导人始终没有露面。
On August 17th, after seven weeks of trial and 14 days of deliberation, the jury delivered its verdict.
8月17日，经过七周的审判和14天的陪审团商讨，陪审团宣读了裁决。
For the next seven weeks, the memory test was repeated weekly in all of the groups.
接下来的七周中，所有组别每周进行一次记忆测试。
The recovery period from the surgery to remove it was supposed to be a mere seven weeks.
原本估计，从切除肿瘤手术到身体康复仅需7周时间。
After six or seven weeks, the baby's arms, hands, and feet start to show. You can see the eyes as well.
六至七星期后，就能看出孩子的胳膊、手和脚了。眼睛也能看出来了。
This had been a long process, not just seven weeks but almost a year's worth of thought and preparation.
这是一段很长的路，不仅仅是7个星期，而是差不多一年的思考和准备。
Three teenage boys who were drifting in the Pacific Ocean for more than seven weeks have been found alive.
漂流在太平洋上的三个十几岁的男孩逾七周后被发现还活着。
Given that the Shanghai market had its best showing for seven weeks that day, perhaps this has already happened.
鉴于当日上海股票市场涨势是七周以来最好的一天，或许这推测已成事实。
But the arrival of Gracie wasn't easy as Tia was diagnosed with pre-eclampsia, seven weeks before her due date.
诞下格雷西对于蒂娅来说却不是件容易的事。蒂娅在预产期的七周前被诊断出患有子痫前症。
Gold futures for December delivery climbed 1.7% in New York on Tuesday, their biggest one-day percentage gain in seven weeks.
周二纽约商品交易所12月份黄金期货价格上升1.7%，创下7周来最大单日涨幅。
The University of Michigan’s Ross School of Business requires all first-year MBA students to spend seven weeks working abroad.
密歇根大学罗斯商学院要求其所有的一年级MBA学生要在国外工作七周。
The plan depends on Medvedev leading the ruling United Russia party to victory in parliamentary elections seven weeks from now.
这项计划有赖于梅德韦杰夫所领导的统一俄罗斯党能够赢得7个星期后举行的议会选举。
In the States, the school summer holidays are longer than in Britain (nearly three months in the States, six or seven weeks in Britain).
美国中小学的暑假比英国的长(美国有将近三个月，英国只有六到七周)。
In his first tournament in seven weeks, he finished with three straight rounds of 68 to tie for 30th, 10 shots behind, at 7-under 277.
在为期7周的首次锦标赛中，他连续三轮交出68杆的成绩，落后10杆，以277杆，低于标准杆7杆的成绩并列第30名。
The site has been live for at least seven weeks but, as Burge admits, this has been done discreetly in order to carry out quiet user testing.
该网站已经上线7周以上，但Burge也承认，网站上线很低调，目的是为了更好地暗中进行用户测试。
Mice were studied over seven weeks, with half exposed to smoke from four cigarettes a day for six days a week while the other half smoke free.
研究人员对老鼠进行了超过七周的实验，其中一半的老鼠一周六天每天暴露在4支卷烟的烟雾中，而另一半则完全处在无烟环境中。
These routines continued for seven weeks, after which the researchers microscopically examined brain tissue from the hippocampus of each animal.
锻炼持续七周后，研究人员用显微镜检查了每只动物海马中的脑组织。
And just seven weeks before the election, John McCain is slightly ahead of Barack Obama. That's according to a new AP-GFK poll of likely voters.
距离大选还有七周时，新的AP -GFK民调显示，约翰·麦凯恩以微弱优势领先巴拉克·奥巴马。
After seven weeks, the animals on the high-fat diet that exercised were scoring as well on the memory test as they had at the start of the experiment.
七周后，高脂饮食的运动大鼠在记忆测试方面的评分已经恢复到了试验开始时的水平。
Schools are also introducing "global experience requirements". The University of Michigan's Ross School of Business requires all first-year MBA students to spend seven weeks working abroad.
它们还引入了“全球经验需求”的概念，比如密歇根大学罗斯商学院就要求所有MBA一年生至少花7周时间在海外工作。
Schools are also introducing “global experience requirements”. The University of Michigan's Ross School of Business requires all first-year MBA students to spend seven weeks working abroad.
它们还引入了“全球经验需求”的概念，比如密歇根大学罗斯商学院就要求所有MBA一年生至少花7周时间在海外工作。
The FTSE Asia-Pacific index rose 0.6 per cent to 238.90, its highest close since January 19, with the Shanghai Composite rising 2.1 per cent to 3,123.798, its best performance in seven weeks.
富时亚太指数上涨0.6%，至238.90点，为1月19日以来的最高收盘位；上证指数涨2.1%，至3123.798点，为7周来最佳表现。
You have five to seven weeks (depending on when you get started) to write a short research paper that carefully examines the emergence and success of one business improvement district organization.
你有近五到七个星期(看你是何时开始)的时间写短篇研究报告，需仔细检视某一商业改善区域组织之兴起及其成功。
A year later, Grizzly joined the family after being rescued from the streets at just seven-weeks-old.
一年后，只有七周大的“灰熊”被她拯救于街头，自此便成为这个家庭的一员。
A year later, Grizzly joined the family after being rescued from the streets at just seven-weeks-old.
一年后，只有七周大的“灰熊”被她拯救于街头，自此便成为这个家庭的一员。
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