Afterwards he found a sunspot group which lived long enough to disappear from view on the western limb of the sun, to reappear on its eastern limb, and finally to regain its old position.
后来,他发现了一个太阳黑子群,它存在时间很长,从太阳的西边消失,又在东边出现,最后又回到原来的位置。
Francis Collins led the international group from his position at America's National Institutes of Health.
VOA: special.2010.07.20
Instead of spreading ignorance, the group said the pope should use his leadership position to encourage young people to protect themselves in all ways, including condoms.
VOA: standard.2009.03.20
Afghan analyst Candace Rondeaux of the International Crisis Group says that puts the United States in an awkward position because the U.S.and Mr.Karzai are inextricably linked in Afghan minds.
VOA: standard.2009.08.03
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