单词：pregestation
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英文魔法师字源大挪移
Hows this for a possible new culprit for breast cancer sufferers: they may be able to blame their grandmas diets. Thats the implication of a study done with rats. Researchers affiliated with the Georgetown University Medical Center fed a group of pre
Scientific American(四)月
1. President Bush and British Prime Minister Gordon Brown agree fighting terrorism is a top priority. The two leaders met at Camp David for the first time since Brown took office, replacing Bush's longtime ally Tony Blair. In addition to policy talks
美联社新闻一分钟2007
New Report Finds Pre-Term Birth is Greatest Risk for Newborns Henry, is a beautiful baby who was in his mother's womb for just 26 weeks, far short of the normal gestation period of 40 weeks. Henry came into the world weighing just under 1,000 grams,
VOA标准英语2012年(五月)
If you grew up with a brother or sister, you probably know what sibling rivalry is like. For a spotted hyena though, sibling rivalry is a matter of life and death. Spotted hyena mothers usually have twins. They give birth in a private burrow where th
英语时差8，16
Living the Prolific Life: A How-to Guide Prolific (pr?-li-fik) : Marked by abundant inventiveness or productivity. Merriam Webster Online The prolific life has been characterized by abundant inventiveness and limitless creativity. Prolificacy has als
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