单词：strontia
and baryta in many of its properties. It is an oxide of the metal
strontium.
单词：strontia 相关文章
Though it was a bright, hot dawn outside, there were no windows in this part of the castle. Van Ritchten had to provide his own light in the form of a small lantern, which he gripped with a white- 1)
疯狂英语2002年
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得10到30积分的奖励! Thank you！
单词解析速记
Feeling stressed and in need of a vacation? You are not alone but more than half of Americans do not take all their vacation days, even though they think they need a holiday more this year than last. And nearly a third of workers who do take a break
英语新闻
In The Hague, former Bosnian Serb leader Radovan Karadzic has resumed his own defense in his war crimes trial for what he called Serbias just and holy cause against Muslim aggression during the war in Bosnia in the 1990s. But nearly 20 years after it
VOA标准英语2010年(三月)
Beginners. We are continuing our study of different countries, with Croatia. It is a realtively small country in Central and Southeastern Europe, that is sandwiched between Slovenia and Hungary to the North, Serbia to the Northeast, Bosnia and Hertze
英语博客 A cup of English
An astronomer used to walk out every night to gaze upon the stars．It happened one night that，as he was wandering in the outskirts of the city，with his whole thoughts rapt up in the skies，he fell into a well．On his holloaing and calling out，
趣味英语