单词:saline bog
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Hello, Im Callum Robertson and this is Entertainment. Next Monday, August th 27 , in Britain is a national holiday or what we call a bank holiday and several thousand people will be heading off to a small village in Wales which is hosting the World B
神奇校车带领孩子们进入浩瀚的科学领域,游梭于生物科学、地球科学、太空科学、气象学、古生物学等各门学科中。被纽约时报评为最新鲜有趣、最富有创意和想象力的科学启蒙方式。孩子
By Mike O'Sullivan Los Angeles 27 March 2006 A museum in Los Angeles is bringing to life the people who lived in northern Europe thousands of years ago. Well-preserved bodies and artifacts from fog-sh
The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s
The Telescope 望远镜 When do you use a telescope? 你什么时候使用望远镜? A telescope is long and tube sheet. It has lenses inside. 望远镜是长管状的薄片,里面有透镜。 It helps people see things far away. 它帮人们看远处
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