单词：natural bauxite cement
单词：natural bauxite cement 相关文章
bauxite, ['b?:ksait] n 铝土矿（铝的基本矿石） 【记】1）Baux是法国地名，xite＝site场所。Baux因产铝而知名。 2）baux读：宝库，xite场所。产铝的宝库
不择手段背单词
Grammar Girl here. Todays topic is cement versus concrete. Guest writer Sal Glynn writes: Accuracy is important. You might think concrete and cement are interchangeable, but you'll quickly find that you're mistaken when some guy at Home Depot rolls h
英语语法 Grammar Girl
By Phuong Tran Dakar 24 January 2007 While talks sputter to end Guinea's deadly two-week nationwide strike, the country's main export industry is starting to feel the effects. Guinea is the world's largest exporter of bauxite, the raw material used
2007年VOA标准英语（一月）
Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele
VOA标准英语2010年(一月)
The importance of Guinea to China is clear. 几内亚对中国的重要性显而易见。 The authorities in Beijing have promised the government a $20bn loantwice the country's GDPto be paid to Guinea in instalments over 20 years, 北京当局承诺为
经济学人商业系列
In the small village of Lasanayah, Mamadou Kalissa looks out over his ancestral home. 在Lasanayah的一个小村庄里，马马杜卡利萨朝着自己的老家看去。 Last year it was farmland but now bauxite mining has turned it into a Martian l
经济学人商业系列