In Alberta people mine and drill for oil, potash, petrol and gas.在亚伯达,人们采矿、打井开采石油 、 碳酸钾 、 汽油和天然气.In Alberta and Saskatchewan there are many hills where dinosaur bones were found.亚伯达和萨斯喀彻温省的许多山区发现了恐龙化石.The plains of Alber...
In Alberta people mine and drill for oil, potash, petrol and gas.在亚伯达,人们采矿、打井开采石油 、 碳酸钾 、 汽油和天然气.The plains of Alberta are extremely fertile.艾伯塔平原极其肥沃.In Alberta and Saskatchewan there are many hills where dinosaur bones...
Einstein's new theory on optics changed classical scientific ideas about light.爱因斯坦新的光学理论改变了人们对光的传统科学概念.Newton published his first work on optics.牛顿出版了他的第一部光学著作。Successive approximation method is adopted in the desi...
With their fleece sopping wet, they huddled in hollows, too dispirited to graze.在皮毛打湿的情况下, 他们挤在低洼处,靠近黑莓丛,或者躲在背风坡上, 毫无觅食的情绪.Michelle will also spin a customer's wool fleece to specification at a cost of $2.25 an ounc...