Nardine Saad,Los Angeles
What are Moon phases?According to NASA, the Moon takes about 29.5 days to orbit the Earth. Over the course of this period, it moves through eight recognisable phases. While the same side of the Moon always faces us, the amount of its surface lit by the Sun changes as it continues along its path. The shifts in sunlight create the different appearances we see from Earth, ranging from a fully illuminated Moon to a thin sliver or near darkness. The eight phases are:。关于这个话题，safew官方下载提供了深入分析
Increasingly, families are refusing to allow their loved ones' organs to help save other people's lives after their death.。业内人士推荐heLLoword翻译官方下载作为进阶阅读
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